Time zone for time. Corresponding timestamps would be converted to this time zone of the Datetime Array/Index. A tz of None will convert to UTC and remove the timezone information
ReturnsArray or IndexRaisesTypeErrorIf Datetime Array/Index is tz-naive
See also
A timezone that has a variable offset from UTC
Localize tz-naive DatetimeIndex to a given time zone, or remove timezone from a tz-aware DatetimeIndex
I generally find Python a very versatile language that allows you to do a lot of things without having to expend a lot of effort. However I have run into some issues with the datetime module
For basic purpose the datetime module is quite sufficient, but the sadly timezones cannot be manipulated and used just with the datetime module. For example a simple task as converting the date time object from one timezone to another can be pretty daunting. So I will use this as an example to show how you can deal with timezones
A simple datetime object is called timezone naive. So when we do the following
from datetime import datetime
now = datetime.now[]
This creates a datetime object, that does not have any information about the timezone, and uses the current time of the system. To use timezone with it, you need to convert this into a timezone aware aware object. This can be done with using the replace function as follows
# suppose you have the desired timezone in the variable tz
now = now.replace[tzinfo = tz]
_There are two things, first how can we get the tzinfo object, and second is, does the now object contain the correct datetime according to the timezone that you have entered. I will come to the first part later, but the answer to the second part is NO
What replace does is that it just populates the tzinfo field, and simply accepts that you have given the correct timezone for the datetime. So suppose you are in India [your timezone being Asia/Kolkata] and you set the tzinfo for Europe/Berlin then it would simply accept that the current time of the system is actually the Europe/Berlin system, which is actually wrong
So if you want to convert datetime from one timezone to another, you have to use astimezone
now = datetime.now[]
now = now.replace[tzinfo = tz]
now = now.astimezone[tz]
Here we must see that we cannot directly use astimezone
because datetime.now[]
gives us a timezone naive object and we can use astimezone only on a timezone aware object. So although the middle line seems to be useless, we nevertheless have to use it
Now coming to the point how we can get the different timezones. And that is not a very straight forward task. We have to use two modules for that
# suppose you have the desired timezone in the variable tz
now = now.replace[tzinfo = tz]
0 and # suppose you have the desired timezone in the variable tz
now = now.replace[tzinfo = tz]
1 both of which are pretty handy. So if we need to get the current timezone then we would do the followingfrom dateutil.tz import *
# This contains the local timezone
local = tzlocal[]
now = datetime.now[]
now = now.replace[tzinfo = local]
# prints a timezone aware datetime
print now
And suppose we want to convert this to utc datetime then we would do
utc = tzutc[]
utc_now = now.astimezone[utc]
print utc_now
Using just the dateutil module does not give us a lot of flexibility because we can only get the tzlocal[] and tzutc[], but what if we have to convert datetime to some other timezone. In that case we will have to use pytz module. Suppose you know that your timezone is 'Asia\Kolkata' and you want to convert datetime from some other timezone you would do the following
import pytz
# assuming now contains a timezone aware datetime
tz = pytz.timezone['Asia/Kolkata']
your_now = now.astimezone[tz]
print your_now
As I said before the dateutil and pytz modules are pretty handy and can be used for other things as well. You are free to explore them if you want to. Just to give an example suppose you have a datetime in string as 5 P. M. 21st January dateutil can parse it into a datetime object as
from dateutil.parser import *
parse["5 P.M. 21st January"]
Catatan. If you are using dateutil with python2. x you are likely to get an error because they are some incompatibilities, so you must also install python-dateutil==1. 5
While date and time arithmetic is supported, the focus of the implementation is on efficient attribute extraction for output formatting and manipulation
See also
ModuleGeneral calendar related functions
ModuleTime access and conversions
ModuleConcrete time zones representing the IANA time zone database
Package dateutilThird-party library with expanded time zone and parsing support
Aware and Naive Objects
Date and time objects may be categorized as “aware” or “naive” depending on whether or not they include timezone information
With sufficient knowledge of applicable algorithmic and political time adjustments, such as time zone and daylight saving time information, an aware object can locate itself relative to other aware objects. An aware object represents a specific moment in time that is not open to interpretation.
A naive object does not contain enough information to unambiguously locate itself relative to other date/time objects. Whether a naive object represents Coordinated Universal Time [UTC], local time, or time in some other timezone is purely up to the program, just like it is up to the program whether a particular number represents metres, miles, or mass. Naive objects are easy to understand and to work with, at the cost of ignoring some aspects of reality
For applications requiring aware objects, and objects have an optional time zone information attribute,
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'4, that can be set to an instance of a subclass of the abstract class. These objects capture information about the offset from UTC time, the time zone name, and whether daylight saving time is in effect
Only one concrete class, the class, is supplied by the module. The class can represent simple timezones with fixed offsets from UTC, such as UTC itself or North American EST and EDT timezones. Supporting timezones at deeper levels of detail is up to the application. The rules for time adjustment across the world are more political than rational, change frequently, and there is no standard suitable for every application aside from UTC
Constants
The module exports the following constants
datetime. MINYEARThe smallest year number allowed in a or object. is
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.05datetime. MAXYEAR
The largest year number allowed in a or object. is
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.09datetime. UTC
Alias for the UTC timezone singleton
New in version 3. 11
Available Types
class datetime. dateAn idealized naive date, assuming the current Gregorian calendar always was, and always will be, in effect. Atribut. , , Dan
kelas tanggal waktu. waktuWaktu ideal, terlepas dari hari tertentu, dengan asumsi bahwa setiap hari memiliki tepat 24*60*60 detik. [Tidak ada gagasan "detik kabisat" di sini. ] Atribut. , , , , Dan
kelas tanggal waktu. tanggal waktuKombinasi tanggal dan waktu. Atribut. , , , , , , , Dan
kelas tanggal waktu. timedeltaDurasi yang menyatakan perbedaan antara dua , , atau instance ke resolusi mikrodetik
kelas tanggal waktu. tzinfoKelas dasar abstrak untuk objek informasi zona waktu. Ini digunakan oleh kelas dan untuk memberikan gagasan penyesuaian waktu yang dapat disesuaikan [misalnya, untuk memperhitungkan zona waktu dan/atau waktu musim panas]
kelas tanggal waktu. zona waktuKelas yang mengimplementasikan kelas dasar abstrak sebagai offset tetap dari UTC
New in version 3. 2
Objects of these types are immutable
Subclass relationships
object timedelta tzinfo timezone time date datetime
Common Properties
The , , , and types share these common features
Objects of these types are immutable
Objects of these types are hashable, meaning that they can be used as dictionary keys
Objects of these types support efficient pickling via the module
Determining if an Object is Aware or Naive
Objects of the type are always naive
An object of type or may be aware or naive
A object d is aware if both of the following hold
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
02 is not>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
04 does not return>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03
Otherwise, d is naive
A object t is aware if both of the following hold
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
07 is not>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
09 does not return>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03
Otherwise, t is naive
The distinction between aware and naive doesn’t apply to objects
Objects
A object represents a duration, the difference between two dates or times
class datetime. timedelta[days=0 , seconds=0 , microseconds=0 , milliseconds=0 , minutes=0 , hours=0 , weeks=0]All arguments are optional and default to
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]14. Arguments may be integers or floats, and may be positive or negative
Only days, seconds and microseconds are stored internally. Arguments are converted to those units
A millisecond is converted to 1000 microseconds
A minute is converted to 60 seconds
An hour is converted to 3600 seconds
A week is converted to 7 days
and days, seconds and microseconds are then normalized so that the representation is unique, with
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
15>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
16 [the number of seconds in one day]>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
17
The following example illustrates how any arguments besides days, seconds and microseconds are “merged” and normalized into those three resulting attributes
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
If any argument is a float and there are fractional microseconds, the fractional microseconds left over from all arguments are combined and their sum is rounded to the nearest microsecond using round-half-to-even tiebreaker. If no argument is a float, the conversion and normalization processes are exact [no information is lost]
If the normalized value of days lies outside the indicated range, is raised
Note that normalization of negative values may be surprising at first. Misalnya
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
Class attributes
timedelta. minThe most negative object,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]20timedelta. max
The most positive object,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]22delta waktu. resolusi
Perbedaan sekecil mungkin antara objek yang tidak sama,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]24
Perhatikan bahwa, karena normalisasi,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]25 >
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]26.
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]27 tidak dapat direpresentasikan sebagai objek
Atribut instance [hanya baca]
Atribut
Nilai
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_29
Antara -999999999 dan 999999999 inklusif
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_30
Antara 0 dan 86399 inklusif
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_31
Antara 0 dan 999999 inklusif
Operasi yang didukung
Operasi
Result
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_32
Jumlah t2 dan t3. Setelah itu t1-t2 == t3 dan t1-t3 == t2 benar. [1]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_33
Selisih t2 dan t3. Setelah itu t1 == t2 - t3 dan t2 == t1 + t3 benar. [1][6]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_34
Delta dikalikan dengan bilangan bulat. Setelah itu t1 // i == t2 benar, asalkan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]35
Secara umum, t1 * i == t1 * [i-1] + t1 benar. [1]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_36
Delta dikalikan dengan pelampung. Hasilnya dibulatkan ke kelipatan timedelta terdekat. resolusi menggunakan putaran-setengah-ke-genap
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_37
Pembagian [3] durasi keseluruhan t2 dengan satuan interval t3. Mengembalikan objek
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_39
Delta dibagi dengan float atau int. Hasilnya dibulatkan ke kelipatan timedelta terdekat. resolusi menggunakan putaran-setengah-ke-genap
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]40 atau
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]41
Lantai dihitung dan sisanya [jika ada] dibuang. Dalam kasus kedua, bilangan bulat dikembalikan. [3]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_42
Sisanya dihitung sebagai objek. [3]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_44
Menghitung hasil bagi dan sisanya.
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]45 [3] dan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]46. q adalah bilangan bulat dan r adalah objek
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_48
Mengembalikan objek dengan nilai yang sama. [2]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]50
setara dengan [-t1. hari, -t1. detik, -t1. mikrodetik], dan ke t1* -1. [1][4]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]52
setara dengan +t saat
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_53, dan ke -t saat
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_54. [2]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]55
Mengembalikan string dalam bentuk
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_56, dengan D negatif untuk negatif
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]57. [5]
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_58
Mengembalikan representasi string dari objek sebagai panggilan konstruktor dengan nilai atribut kanonis
Catatan
This is exact but may overflow
Ini tepat dan tidak bisa meluap
Pembagian dengan 0 menimbulkan
-timedelta. max tidak dapat direpresentasikan sebagai objek
Representasi string objek dinormalisasi serupa dengan representasi internalnya. Hal ini menyebabkan hasil yang agak tidak biasa untuk timedelta negatif. Misalnya
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:00
Ekspresi
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
_63 akan selalu sama dengan ekspresi>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
64 kecuali jika t3 sama dengan>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
25;
Selain operasi yang tercantum di atas, objek mendukung penambahan dan pengurangan tertentu dengan objek dan [lihat di bawah]
Berubah di versi 3. 2. Pembagian lantai dan pembagian sebenarnya dari suatu objek oleh objek lain sekarang didukung, seperti operasi sisa dan fungsinya. Pembagian dan perkalian sebenarnya dari suatu objek dengan objek sekarang didukung.
Perbandingan objek didukung, dengan beberapa peringatan
Perbandingan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]75 atau
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]76 selalu mengembalikan a , apa pun jenis objek yang dibandingkan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
Untuk semua perbandingan lainnya [seperti
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]78 dan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]79], ketika suatu objek dibandingkan dengan objek dari jenis yang berbeda, dinaikkan
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'_
Dalam konteks Boolean, sebuah objek dianggap benar jika dan hanya jika tidak sama dengan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]83
Metode instan
delta waktu. total_detik[]Mengembalikan jumlah total detik yang terkandung dalam durasi. Setara dengan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_84. Untuk satuan interval selain detik, gunakan bentuk pembagian secara langsung [mis. g.
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_85]
Perhatikan bahwa untuk interval waktu yang sangat lama [lebih dari 270 tahun pada sebagian besar platform] metode ini akan kehilangan akurasi mikrodetik
New in version 3. 2
Contoh penggunaan.
Contoh tambahan normalisasi
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.0
Contoh aritmatika
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]
Objects
Objek mewakili tanggal [tahun, bulan, dan hari] dalam kalender ideal, kalender Gregorian saat ini diperpanjang tanpa batas waktu di kedua arah
1 Januari tahun 1 disebut hari nomor 1, 2 Januari tahun 1 disebut hari nomor 2, dan seterusnya.
kelas tanggal waktu. tanggal[tahun , bulan, day]Semua argumen diperlukan. Argumen harus berupa bilangan bulat, dalam rentang berikut
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
_90>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
_91>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
_92
Jika argumen di luar rentang tersebut diberikan, akan dimunculkan
Konstruktor lain, semua metode kelas
metode kelas tanggal. hari ini[]Mengembalikan tanggal lokal saat ini
Ini setara dengan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_94metode kelas tanggal. fromtimestamp[timestamp]
Kembalikan tanggal lokal yang sesuai dengan stempel waktu POSIX, seperti yang dikembalikan oleh
Ini dapat meningkat, jika stempel waktu berada di luar rentang nilai yang didukung oleh fungsi platform C
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97, dan pada kegagalan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97. It’s common for this to be restricted to years from 1970 through 2038. Perhatikan bahwa pada sistem non-POSIX yang menyertakan detik kabisat dalam gagasannya tentang stempel waktu, detik kabisat diabaikan oleh
Berubah di versi 3. 3. Angkat alih-alih jika stempel waktu berada di luar rentang nilai yang didukung oleh fungsi platform C
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97. Menaikkan bukan pada
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_97 kegagalan. metode kelas tanggal. dariordinal[ordinal]
Kembalikan tanggal yang sesuai dengan ordinal Gregorian proleptik, di mana 1 Januari tahun 1 memiliki ordinal 1
dinaikkan kecuali
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_08. Untuk setiap tanggal d,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_09metode kelas tanggal. fromisoformat[date_string]
Kembalikan yang sesuai dengan date_string yang diberikan dalam format ISO 8601 yang valid, kecuali tanggal ordinal [mis. g.
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_11]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
Baru di versi 3. 7
Berubah di versi 3. 11. Sebelumnya, metode ini hanya mendukung format
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]12. metode kelas tanggal. dari isocalendar[tahun , minggu, day]
Kembalikan yang sesuai dengan tanggal kalender ISO yang ditentukan berdasarkan tahun, minggu, dan hari. Ini adalah kebalikan dari fungsi
Baru di versi 3. 8
Class attributes
kencan. mntTanggal paling awal yang dapat diwakili,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_15kencan. maks
Tanggal terbaru yang dapat diwakili,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_16kencan. resolusi
Perbedaan sekecil mungkin antara objek tanggal yang tidak sama,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]17
Atribut instance [hanya baca]
kencan. tahunAntara dan inklusif
kencan. bulanAntara 1 dan 12 inklusif
kencan. hariAntara 1 dan jumlah hari dalam bulan tertentu pada tahun tertentu
Operasi yang didukung
Operasi
Result
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]20
tanggal2 akan menjadi
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_21 hari setelah tanggal1. [1]
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_22
Menghitung tanggal2 sehingga
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]23. [2]
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_24
[3]
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]25
date1 dianggap kurang dari date2 saat date1 mendahului date2 dalam waktu. [4]
Catatan
date2 bergerak maju dalam waktu jika
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
26, atau mundur jika>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
27. Setelah itu>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
_28.>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
29 dan>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
30 diabaikan. dinaikkan jika>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
_32 akan lebih kecil dari atau lebih besar dari>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
29 dan>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
30 diabaikanIni tepat, dan tidak bisa meluap. timedelta. detik dan delta waktu. mikrodetik adalah 0, dan tanggal2 + timedelta == tanggal1 setelahnya
Dengan kata lain,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
_25 jika dan hanya jika>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
38. Perbandingan tanggal muncul jika perbandingan lainnya juga bukan objek. Namun,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
_41 dikembalikan sebagai gantinya jika pembanding lainnya memiliki atribut>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
42. Pengait ini memberi kesempatan pada objek tanggal jenis lain untuk mengimplementasikan perbandingan tipe campuran. Jika tidak, ketika suatu objek dibandingkan dengan objek dari jenis yang berbeda, dimunculkan kecuali perbandingannya adalah>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
75 atau>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
76. Kasus terakhir kembali atau , masing-masing
Dalam konteks Boolean, semua objek dianggap benar
Metode instan
date. replace[year=self. year , month=self. month , day=self. day]Return a date with the same value, except for those parameters given new values by whichever keyword arguments are specified
Contoh
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]date. timetuple[]
Return a such as returned by
The hours, minutes and seconds are 0, and the DST flag is -1
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]52 is equivalent to
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]0
where
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]53 is the day number within the current year starting with
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.05 for January 1stdate. toordinal[]
Return the proleptic Gregorian ordinal of the date, where January 1 of year 1 has ordinal 1. For any object d,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]09date. weekday[]
Return the day of the week as an integer, where Monday is 0 and Sunday is 6. For example,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]57, a Wednesday. See also date. isoweekday[]
Return the day of the week as an integer, where Monday is 1 and Sunday is 7. For example,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]59, a Wednesday. See also , date. isocalendar[]
Return a object with three components.
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]1,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]63 and
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]64
The ISO calendar is a widely used variant of the Gregorian calendar.
The ISO year consists of 52 or 53 full weeks, and where a week starts on a Monday and ends on a Sunday. The first week of an ISO year is the first [Gregorian] calendar week of a year containing a Thursday. This is called week number 1, and the ISO year of that Thursday is the same as its Gregorian year
For example, 2004 begins on a Thursday, so the first week of ISO year 2004 begins on Monday, 29 Dec 2003 and ends on Sunday, 4 Jan 2004
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]1
Changed in version 3. 9. Result changed from a tuple to a .
date. isoformat[]Return a string representing the date in ISO 8601 format,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]12
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]2date. __str__[]
For a date d,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]66 is equivalent to
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]67date. waktu[]
Return a string representing the date
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]3
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]68 is equivalent to
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]4
on platforms where the native C
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]69 function [which invokes, but which does not invoke] conforms to the C standarddate. strftime[format]
Return a string representing the date, controlled by an explicit format string. Format codes referring to hours, minutes or seconds will see 0 values. For a complete list of formatting directives, see
date. __format__[format]Same as . This makes it possible to specify a format string for a object in and when using . For a complete list of formatting directives, see
Examples of Usage.
Example of counting days to an event
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]5
More examples of working with
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]6
Objects
A object is a single object containing all the information from a object and a object
Like a object, assumes the current Gregorian calendar extended in both directions; like a object, assumes there are exactly 3600*24 seconds in every day
Constructor
class datetime. datetime[year , month , day , hour=0 , minute=0 , second=0 , microsecond=0 , tzinfo=None , * , fold=0]The year, month and day arguments are required. tzinfo may be
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, or an instance of a subclass. The remaining arguments must be integers in the following ranges
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
90,>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
91,>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
92,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
90,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
91,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
92,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
93,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
94
Jika argumen di luar rentang tersebut diberikan, akan dimunculkan
New in version 3. 6. Added the
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]96 argument.
Konstruktor lain, semua metode kelas
classmethod datetime. today[]Return the current local datetime, with
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03
Equivalent to
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]7
See also ,
This method is functionally equivalent to , but without a
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0002 parameterclassmethod datetime. now[tz=None]
Return the current local date and time
If optional argument tz is
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 or not specified, this is like , but, if possible, supplies more precision than can be gotten from going through a timestamp [for example, this may be possible on platforms supplying the C
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0006 function]
If tz is not
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, it must be an instance of a subclass, and the current date and time are converted to tz’s time zone
This function is preferred over and
classmethod datetime. utcnow[]Return the current UTC date and time, with
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03
This is like , but returns the current UTC date and time, as a naive object. Tanggal waktu UTC yang diketahui saat ini dapat diperoleh dengan menelepon
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0015. See also
Warning
Karena objek
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 yang naif diperlakukan oleh banyak metode
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 sebagai waktu lokal, lebih disukai menggunakan waktu yang diketahui untuk mewakili waktu dalam UTC. As such, the recommended way to create an object representing the current time in UTC is by calling
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0015metode kelas tanggal waktu. fromtimestamp[timestamp , tz=None]
Kembalikan tanggal dan waktu lokal yang sesuai dengan stempel waktu POSIX, seperti dikembalikan oleh. If optional argument tz is
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 or not specified, the timestamp is converted to the platform’s local date and time, and the returned object is naive
Jika tz bukan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, itu harus merupakan turunan dari subkelas, dan stempel waktu diubah menjadi zona waktu tz
may raise , if the timestamp is out of the range of values supported by the platform C
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97 or
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 functions, and on
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97 or
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 failure. Biasanya hal ini dibatasi pada tahun 1970 hingga 2038. Note that on non-POSIX systems that include leap seconds in their notion of a timestamp, leap seconds are ignored by , and then it’s possible to have two timestamps differing by a second that yield identical objects. This method is preferred over
Changed in version 3. 3. Raise instead of if the timestamp is out of the range of values supported by the platform C
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97 or
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 functions. Raise instead of on
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]97 or
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 failure.
Changed in version 3. 6. may return instances with set to 1.
classmethod datetime. utcfromtimestamp[timestamp]Return the UTC corresponding to the POSIX timestamp, with
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03. [The resulting object is naive. ]
This may raise , if the timestamp is out of the range of values supported by the platform C
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 function, and on
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 failure. It’s common for this to be restricted to years in 1970 through 2038
To get an aware object, call
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]8
On the POSIX compliant platforms, it is equivalent to the following expression
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]9
except the latter formula always supports the full years range. between and inclusive
Warning
Because naive
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 objects are treated by many
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 methods as local times, it is preferred to use aware datetimes to represent times in UTC. As such, the recommended way to create an object representing a specific timestamp in UTC is by calling
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0058
Changed in version 3. 3. Raise instead of if the timestamp is out of the range of values supported by the platform C
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 function. Raise instead of on
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0028 failure. classmethod datetime. fromordinal[ordinal]
Return the corresponding to the proleptic Gregorian ordinal, where January 1 of year 1 has ordinal 1. is raised unless
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0067. The hour, minute, second and microsecond of the result are all 0, and is
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03classmethod datetime. combine[date , time , tzinfo=self. tzinfo]
Return a new object whose date components are equal to the given object’s, and whose time components are equal to the given object’s. If the tzinfo argument is provided, its value is used to set the attribute of the result, otherwise the attribute of the time argument is used
For any object d,
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0076. If date is a object, its time components and attributes are ignored
Changed in version 3. 6. Added the tzinfo argument.
classmethod datetime. fromisoformat[date_string]Return a corresponding to a date_string in any valid ISO 8601 format, with the following exceptions
Offset zona waktu mungkin memiliki pecahan detik
Pemisah
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:00
_80 dapat diganti dengan karakter unicode tunggal apa punOrdinal dates are not currently supported
Fractional hours and minutes are not supported
Examples
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]0
Baru di versi 3. 7
Changed in version 3. 11. Previously, this method only supported formats that could be emitted by or .
classmethod datetime. fromisocalendar[year , week , day]Return a corresponding to the ISO calendar date specified by year, week and day. The non-date components of the datetime are populated with their normal default values. This is the inverse of the function
Baru di versi 3. 8
classmethod datetime. strptime[date_string , format]Return a corresponding to date_string, parsed according to format
This is equivalent to
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]1
is raised if the date_string and format can’t be parsed by or if it returns a value which isn’t a time tuple. For a complete list of formatting directives, see
Class attributes
datetime. minThe earliest representable ,
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0089datetime. max
The latest representable ,
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0091datetime. resolution
Perbedaan sekecil mungkin antara objek yang tidak sama,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]24
Atribut instance [hanya baca]
datetime. yearAntara dan inklusif
datetime. monthAntara 1 dan 12 inklusif
datetime. dayAntara 1 dan jumlah hari dalam bulan tertentu pada tahun tertentu
datetime. hourIn
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0096datetime. minute
In
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0097datetime. second
In
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0097datetime. microsecond
In
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0099datetime. tzinfo
The object passed as the tzinfo argument to the constructor, or
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 if none was passeddatetime. fold
In
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False02. Used to disambiguate wall times during a repeated interval. [A repeated interval occurs when clocks are rolled back at the end of daylight saving time or when the UTC offset for the current zone is decreased for political reasons. ] The value 0 [1] represents the earlier [later] of the two moments with the same wall time representation
New in version 3. 6
Operasi yang didukung
Operasi
Result
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False03
[1]
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_04
[2]
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False05
[3]
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False06
Compares to . [4]
datetime2 is a duration of timedelta removed from datetime1, moving forward in time if
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
21 > 0, or backward if>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
21 < 0. The result has the same attribute as the input datetime, and datetime2 - datetime1 == timedelta after. is raised if datetime2. tahun akan lebih kecil dari atau lebih besar dari. Perhatikan bahwa tidak ada penyesuaian zona waktu yang dilakukan meskipun inputnya adalah objek sadarComputes the datetime2 such that datetime2 + timedelta == datetime1. As for addition, the result has the same attribute as the input datetime, and no time zone adjustments are done even if the input is aware
Subtraction of a from a is defined only if both operands are naive, or if both are aware. Jika yang satu sadar dan yang lain naif, diangkat
Jika keduanya naif, atau keduanya sadar dan memiliki atribut yang sama, atribut diabaikan, dan hasilnya adalah objek t sehingga
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
22. Tidak ada penyesuaian zona waktu yang dilakukan dalam kasus iniJika keduanya sadar dan memiliki atribut yang berbeda,
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
24 bertindak seolah-olah a dan b pertama kali dikonversi menjadi waktu waktu UTC yang naif terlebih dahulu. Hasilnya adalah>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
_25 kecuali implementasinya tidak pernah meluapdatetime1 dianggap kurang dari datetime2 saat datetime1 mendahului datetime2 dalam waktu
Jika satu pembanding naif dan yang lain sadar, dimunculkan jika perbandingan pesanan dicoba. Untuk perbandingan kesetaraan, contoh naif tidak pernah sama dengan contoh sadar
Jika kedua comparand sadar, dan memiliki atribut yang sama, atribut umum diabaikan dan waktu dasar dibandingkan. Jika kedua komparand sadar dan memiliki atribut yang berbeda, komparand disesuaikan terlebih dahulu dengan mengurangkan offset UTC-nya [diperoleh dari
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
30]Berubah di versi 3. 3. Perbandingan kesetaraan antara kejadian sadar dan naif tidak meningkat.
Catatan
Untuk menghentikan perbandingan agar tidak jatuh kembali ke skema default untuk membandingkan alamat objek, perbandingan tanggal dan waktu biasanya muncul jika perbandingan lain juga bukan objek. Namun,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
_41 dikembalikan sebagai gantinya jika pembanding lainnya memiliki atribut>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
42. Pengait ini memberi kesempatan pada objek tanggal jenis lain untuk mengimplementasikan perbandingan tipe campuran. Jika tidak, ketika suatu objek dibandingkan dengan objek dari jenis yang berbeda, dimunculkan kecuali perbandingannya adalah>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
75 atau>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
76. Kasus terakhir kembali atau , masing-masing
Metode instan
waktu. tanggal[]Mengembalikan objek dengan tahun, bulan, dan hari yang sama
waktu. waktu[]Kembalikan objek dengan jam, menit, detik, mikrodetik, dan lipat yang sama. adalah
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_03. Lihat juga metode
Berubah di versi 3. 6. Nilai lipatan disalin ke objek yang dikembalikan.
waktu. timetz[]Kembalikan objek dengan atribut jam, menit, detik, mikrodetik, lipat, dan tzinfo yang sama. Lihat juga metode
Berubah di versi 3. 6. Nilai lipatan disalin ke objek yang dikembalikan.
waktu. ganti[tahun=diri. tahun , bulan=diri. bulan , hari=diri. hari , jam=diri. jam , menit=diri. menit , detik=diri. detik , mikrodetik=diri. mikrodetik , tzinfo=self. tzinfo , * , lipat=0]Kembalikan datetime dengan atribut yang sama, kecuali untuk atribut yang diberi nilai baru dengan argumen kata kunci mana pun yang ditentukan. Perhatikan bahwa
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_52 dapat ditentukan untuk membuat waktu naif dari waktu yang diketahui tanpa konversi data tanggal dan waktu
New in version 3. 6. Added the
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]96 argument. waktu. astimezone[tz=Tidak ada]
Mengembalikan objek dengan atribut baru tz, sesuaikan data tanggal dan waktu sehingga hasilnya waktu UTC sama dengan diri sendiri, tetapi dalam waktu lokal tz
Jika disediakan, tz harus merupakan turunan dari subkelas, dan metode dan tidak boleh mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03. Jika diri naif, dianggap mewakili waktu dalam zona waktu sistem
Jika dipanggil tanpa argumen [atau dengan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False60] zona waktu lokal sistem diasumsikan untuk zona waktu target. Atribut
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_61 dari instance datetime yang dikonversi akan disetel ke instance dengan nama zona dan offset diperoleh dari OS
Jika
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_63 adalah tz,
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False64 sama dengan diri. tidak ada penyesuaian data tanggal atau waktu yang dilakukan. Kalau tidak, hasilnya adalah waktu lokal di zona waktu tz, mewakili waktu UTC yang sama dengan diri sendiri. setelah
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_65,
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False66 akan memiliki data tanggal dan waktu yang sama dengan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False67
Jika Anda hanya ingin melampirkan objek zona waktu tz ke datetime dt tanpa penyesuaian data tanggal dan waktu, gunakan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False68. Jika Anda hanya ingin menghapus objek zona waktu dari datetime dt yang diketahui tanpa konversi data tanggal dan waktu, gunakan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False69
Perhatikan bahwa metode default dapat diganti dalam subkelas untuk memengaruhi hasil yang dikembalikan oleh. Mengabaikan kasus kesalahan, bertindak seperti
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]2
Berubah di versi 3. 3. tz sekarang dapat dihilangkan.
Berubah di versi 3. 6. Metode sekarang dapat dipanggil pada instance naif yang dianggap mewakili waktu lokal sistem.
waktu. utcoffset[]Jika
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, yang lain mengembalikan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False78, dan memunculkan pengecualian jika yang terakhir tidak mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 atau objek dengan besaran kurang dari satu hari
Berubah di versi 3. 7. Offset UTC tidak terbatas pada jumlah menit penuh.
waktu. dst[]Jika
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, yang lain mengembalikan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False84, dan memunculkan pengecualian jika yang terakhir tidak mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 atau objek dengan besaran kurang dari satu hari
Berubah di versi 3. 7. Offset DST tidak terbatas pada jumlah menit penuh.
datetime. tzname[]If is
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, returns
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, else returns
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False90, raises an exception if the latter doesn’t return
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 or a string object,datetime. timetuple[]
Return a such as returned by
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]52 is equivalent to
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]3
where
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]53 is the day number within the current year starting with
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.05 for January 1st. The
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 flag of the result is set according to the method. is
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 or returns
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03,
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 is set to
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'04; else if returns a non-zero value,
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 is set to
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.05; else
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 is set to
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]14datetime. utctimetuple[]
If instance d is naive, this is the same as
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]52 except that
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 is forced to 0 regardless of what
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'13 returns. DST is never in effect for a UTC time
If d is aware, d is normalized to UTC time, by subtracting
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'14, and a for the normalized time is returned.
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 is forced to 0. Note that an may be raised if d. year was
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.04 or
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.08 and UTC adjustment spills over a year boundary
Warning
Because naive
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 objects are treated by many
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 methods as local times, it is preferred to use aware datetimes to represent times in UTC; as a result, using may give misleading results. If you have a naive
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False7 representing UTC, use
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'24 to make it aware, at which point you can use datetime. toordinal[]
Return the proleptic Gregorian ordinal of the date. Sama dengan
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'_26datetime. timestamp[]
Return POSIX timestamp corresponding to the instance. The return value is a similar to that returned by
Naive instances are assumed to represent local time and this method relies on the platform C
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'31 function to perform the conversion. Karena mendukung rentang nilai yang lebih luas daripada
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'31 pada banyak platform, metode ini dapat meningkatkan waktu jauh di masa lalu atau jauh di masa depan
Untuk instance sadar, nilai pengembalian dihitung sebagai
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]4
Baru di versi 3. 3
Berubah di versi 3. 6. The method uses the attribute to disambiguate the times during a repeated interval.
Catatan
Tidak ada metode untuk mendapatkan stempel waktu POSIX langsung dari instance naif yang mewakili waktu UTC. Jika aplikasi Anda menggunakan konvensi ini dan zona waktu sistem Anda tidak disetel ke UTC, Anda dapat memperoleh stempel waktu POSIX dengan menyediakan
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'39
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]5
or by calculating the timestamp directly
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]6waktu. hari kerja[]
Mengembalikan hari dalam seminggu sebagai bilangan bulat, di mana Senin adalah 0 dan Minggu adalah 6. Sama seperti
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'_40. Lihat jugawaktu. hari kerja iso[]
Mengembalikan hari dalam seminggu sebagai bilangan bulat, di mana Senin adalah 1 dan Minggu adalah 7. Sama seperti
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'_42. Lihat juga ,waktu. isokalendar[]
Kembalikan a dengan tiga komponen.
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]1,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]63 dan
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]64. Sama seperti
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'_48waktu. isoformat[sep=', timespec='auto']
Kembalikan string yang mewakili tanggal dan waktu dalam format ISO 8601
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_49, jika bukan 0>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_51, jika 0
Jika tidak mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, string ditambahkan, memberikan offset UTC
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_55, jika bukan 0>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_57, jika 0
Examples
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]7
Argumen opsional sep [default
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'59] adalah pemisah satu karakter, ditempatkan di antara bagian tanggal dan waktu dari hasil. Misalnya
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]8
Argumen timespec opsional menentukan jumlah komponen tambahan waktu untuk disertakan [defaultnya adalah
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'60]. Itu bisa menjadi salah satu dari yang berikut
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_60. Sama seperti>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_62 jika 0, sama seperti>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
64 jika tidak>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_65. Sertakan the dalam format ________9______67 dua digit>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_68. Sertakan dan dalam format>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_71>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_62. Sertakan , , dan dalam format>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_76>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_77. Sertakan waktu penuh, tetapi potong bagian kedua pecahan menjadi milidetik.>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_78>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_64. Include full time in>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
80 format
Catatan
Komponen waktu yang dikecualikan dipotong, bukan dibulatkan
akan dimunculkan pada argumen timespec yang tidak valid
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_9
Baru di versi 3. 6. Menambahkan argumen timespec.
waktu. __str__[]Misalnya d,
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]_66 setara dengan
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'84waktu. waktu[]
Kembalikan string yang mewakili tanggal dan waktu
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:000
String keluaran tidak akan menyertakan informasi zona waktu, terlepas dari apakah masukannya sadar atau naif
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]68 is equivalent to
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]4
on platforms where the native C
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]69 function [which invokes, but which does not invoke] conforms to the C standardwaktu. strftime[format]
Kembalikan string yang mewakili tanggal dan waktu, dikontrol oleh string format eksplisit. Untuk daftar lengkap arahan pemformatan, lihat
waktu. __format__[format]Same as . This makes it possible to specify a format string for a object in and when using . For a complete list of formatting directives, see
Examples of Usage.
Contoh bekerja dengan objek
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:002
Contoh di bawah menentukan subkelas yang menangkap informasi zona waktu untuk Kabul, Afghanistan, yang menggunakan +4 UTC hingga tahun 1945 dan kemudian +4. 30 UTC sesudahnya
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:003
Penggunaan
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'_95 dari atas
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:004
Objects
Objek mewakili waktu [lokal] dalam sehari, terlepas dari hari tertentu, dan dapat disesuaikan melalui objek
kelas tanggal waktu. waktu[jam=0, minute=0, second=0, microsecond=0, tzinfo=None, *, fold=0]Semua argumen bersifat opsional. tzinfo mungkin
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_03, atau turunan dari subkelas. Argumen yang tersisa harus berupa bilangan bulat dalam rentang berikut
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
90,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
91,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
92,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
93,>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]
94
Jika argumen di luar rentang tersebut diberikan, akan dimunculkan. Semua default ke
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_14 kecuali tzinfo, yang defaultnya ke
Class attributes
waktu. mntTerwakili paling awal,
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.010waktu. maks
Perwakilan terbaru,
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.012waktu. resolusi
Perbedaan sekecil mungkin antara objek yang tidak sama,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]24, meskipun perhatikan bahwa aritmatika pada objek tidak didukung
Atribut instance [hanya baca]
waktu. jamIn
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0096waktu. menit
In
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0097waktu. detik
In
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0097time. mikrodetik
In
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:0099waktu. tzinfo
The object passed as the tzinfo argument to the constructor, or
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 if none was passedwaktu. lipat
In
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False02. Used to disambiguate wall times during a repeated interval. [A repeated interval occurs when clocks are rolled back at the end of daylight saving time or when the UTC offset for the current zone is decreased for political reasons. ] The value 0 [1] represents the earlier [later] of the two moments with the same wall time representation
New in version 3. 6
objek mendukung perbandingan ke , di mana a dianggap kurang dari b saat a mendahului b dalam waktu. Jika satu pembanding naif dan yang lain sadar, dimunculkan jika perbandingan pesanan dicoba. Untuk perbandingan kesetaraan, contoh naif tidak pernah sama dengan contoh sadar
Jika kedua perbandingan diketahui, dan memiliki atribut yang sama, atribut umum diabaikan dan waktu dasar dibandingkan. Jika kedua komparand sadar dan memiliki atribut yang berbeda, komparand disesuaikan terlebih dahulu dengan mengurangkan offset UTC-nya [diperoleh dari
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False30]. Untuk menghentikan perbandingan tipe campuran agar tidak kembali ke perbandingan default berdasarkan alamat objek, saat objek dibandingkan dengan objek dari tipe yang berbeda, dimunculkan kecuali jika perbandingannya adalah
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]75 atau
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]76. Kasus terakhir kembali atau , masing-masing
Berubah di versi 3. 3. Perbandingan kesetaraan antara kejadian sadar dan naif tidak meningkat.
Dalam konteks Boolean, sebuah objek selalu dianggap benar
Berubah di versi 3. 5. Sebelum Python 3. 5, sebuah objek dianggap salah jika mewakili tengah malam di UTC. Perilaku ini dianggap tidak jelas dan rawan kesalahan dan telah dihapus di Python 3. 5. Lihat bpo-13936 untuk detail selengkapnya.
konstruktor lainnya
metode kelas waktu. fromisoformat[time_string]Kembalikan yang sesuai dengan time_string dalam format ISO 8601 yang valid, dengan pengecualian berikut
Offset zona waktu mungkin memiliki pecahan detik
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:00
80 terkemuka, biasanya diperlukan dalam kasus di mana mungkin ada ambiguitas antara tanggal dan waktu, tidak diperlukanDetik pecahan dapat memiliki jumlah digit berapa pun [apa pun yang melebihi 6 akan dipotong]
Fractional hours and minutes are not supported
Examples
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:005
Baru di versi 3. 7
Berubah di versi 3. 11. Sebelumnya, metode ini hanya mendukung format yang dapat dipancarkan oleh.
Metode instan
waktu. ganti[jam=diri. jam , menit=diri. menit , detik=diri. detik , mikrodetik=diri. mikrodetik , tzinfo=self. tzinfo , * , lipat=0]Kembalikan a dengan nilai yang sama, kecuali untuk atribut yang diberi nilai baru dengan argumen kata kunci mana pun yang ditentukan. Perhatikan bahwa
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_52 dapat ditentukan untuk membuat naif dari aware , tanpa konversi data waktu
New in version 3. 6. Added the
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]96 argument. waktu. isoformat[spek waktu=']
Mengembalikan string yang mewakili waktu dalam format ISO 8601, salah satunya
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_80, jika bukan 0>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_76, jika 0>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.0
_53, jika tidak mengembalikan>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.0
_56, jika 0 dan tidak mengembalikan>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03
Argumen timespec opsional menentukan jumlah komponen tambahan waktu untuk disertakan [defaultnya adalah
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'60]. Itu bisa menjadi salah satu dari yang berikut
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_60. Sama seperti>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_62 jika 0, sama seperti>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
64 jika tidak>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_65. Sertakan the dalam format ________9______67 dua digit>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_68. Sertakan dan dalam format>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_71>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_62. Sertakan , , dan dalam format>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_76>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_77. Sertakan waktu penuh, tetapi potong bagian kedua pecahan menjadi milidetik.>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_78>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
_64. Include full time in>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
80 format
Catatan
Komponen waktu yang dikecualikan dipotong, bukan dibulatkan
akan dimunculkan pada argumen timespec yang tidak valid
Contoh
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:006
Baru di versi 3. 6. Menambahkan argumen timespec.
waktu. __str__[]Untuk waktu t,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_55 setara dengan
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.083waktu. strftime[format]
Kembalikan string yang mewakili waktu, dikontrol oleh string format eksplisit. Untuk daftar lengkap arahan pemformatan, lihat
waktu. __format__[format]Same as . This makes it possible to specify a format string for a object in and when using . For a complete list of formatting directives, see
waktu. utcoffset[]Jika
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, yang lain mengembalikan
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.090, dan memunculkan pengecualian jika yang terakhir tidak mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 atau objek dengan besaran kurang dari satu hari
Berubah di versi 3. 7. Offset UTC tidak terbatas pada jumlah menit penuh.
waktu. dst[]Jika
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, yang lain mengembalikan
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.096, dan memunculkan pengecualian jika yang terakhir tidak mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, atau objek dengan besaran kurang dari satu hari
Berubah di versi 3. 7. Offset DST tidak terbatas pada jumlah menit penuh.
waktu. tzname[]Jika
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, yang lain mengembalikan
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]02, atau memunculkan pengecualian jika yang terakhir tidak mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 atau objek string
Examples of Usage.
Contoh bekerja dengan objek
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:007
Objects
kelas tanggal waktu. tzinfoIni adalah kelas dasar abstrak, artinya kelas ini tidak boleh dipakai secara langsung. Tentukan subkelas untuk menangkap informasi tentang zona waktu tertentu
Instance dari [subclass konkret dari] dapat diteruskan ke konstruktor untuk dan objek. Objek yang terakhir melihat atributnya sebagai waktu lokal, dan objek mendukung metode yang mengungkapkan offset waktu lokal dari UTC, nama zona waktu, dan offset DST, semuanya terkait dengan objek tanggal atau waktu yang diteruskan ke mereka
Anda perlu menurunkan subkelas konkret, dan [setidaknya] menyediakan implementasi dari metode standar yang dibutuhkan oleh metode yang Anda gunakan. Modul ini menyediakan , subkelas konkret sederhana yang dapat mewakili zona waktu dengan offset tetap dari UTC seperti UTC itu sendiri atau EST dan EDT Amerika Utara
Persyaratan khusus untuk pengawetan. Subkelas harus memiliki metode
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]_18 yang dapat dipanggil tanpa argumen, selain itu dapat diasamkan tetapi mungkin tidak diurai lagi. Ini adalah persyaratan teknis yang mungkin dilonggarkan di masa mendatang
Subkelas konkret mungkin perlu mengimplementasikan metode berikut. Tepatnya metode mana yang dibutuhkan bergantung pada kegunaan yang dibuat dari objek sadar. Jika ragu, terapkan saja semuanya
tzinfo. utcoffset[dt]Kembalikan offset waktu lokal dari UTC, sebagai objek yang positif di sebelah timur UTC. Jika waktu lokal di sebelah barat UTC, ini harus negatif
Ini mewakili total offset dari UTC; . Jika offset UTC tidak diketahui, kembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03. Jika tidak, nilai yang dikembalikan harus berupa objek antara
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]26 dan
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]27 [besarnya offset harus kurang dari satu hari]. Sebagian besar implementasi mungkin akan terlihat seperti salah satu dari keduanya
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:008
If does not return
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, should not return
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 either
Implementasi standar kenaikan gaji
Berubah di versi 3. 7. Offset UTC tidak terbatas pada jumlah menit penuh.
tzinfo. dst[dt]Mengembalikan penyesuaian waktu musim panas [DST], sebagai objek atau
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 jika informasi DST tidak diketahui
Kembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_83 jika DST tidak berlaku. Jika DST aktif, kembalikan offset sebagai objek [lihat detailnya]. Perhatikan bahwa offset DST, jika berlaku, telah ditambahkan ke offset UTC yang dikembalikan oleh , jadi tidak perlu berkonsultasi kecuali jika Anda tertarik untuk mendapatkan info DST secara terpisah. Misalnya, panggil metode atributnya untuk menentukan bagaimana bendera
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False97 harus disetel, dan panggil akun untuk perubahan DST saat melintasi zona waktu
Contoh tz dari subkelas yang memodelkan waktu standar dan siang hari harus konsisten dalam pengertian ini
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]_49
harus mengembalikan hasil yang sama untuk setiap dt dengan
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]51 Untuk subkelas waras, ungkapan ini menghasilkan "offset standar" zona waktu, yang seharusnya tidak bergantung pada tanggal atau waktu, tetapi hanya pada lokasi geografis. Implementasi bergantung pada ini, tetapi tidak dapat mendeteksi pelanggaran; . Jika subkelas tidak dapat menjamin hal ini, subkelas tersebut mungkin dapat mengesampingkan implementasi default untuk bekerja dengan benar dengan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False72 terlepas
Sebagian besar implementasi mungkin akan terlihat seperti salah satu dari keduanya
>>> timedelta[hours=-5] datetime.timedelta[days=-1, seconds=68400] >>> print[_] -1 day, 19:00:00_9
atau
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False0
Implementasi standar kenaikan gaji
Berubah di versi 3. 7. Offset DST tidak terbatas pada jumlah menit penuh.
tzinfo. tzname[dt]Kembalikan nama zona waktu yang sesuai dengan objek dt, sebagai string. Tidak ada apa pun tentang nama string yang ditentukan oleh modul, dan tidak ada persyaratan bahwa itu berarti sesuatu secara khusus. Misalnya, “GMT”, “UTC”, “-500”, “-5. 00”, “EDT”, “AS/Timur”, “Amerika/New York” semuanya adalah balasan yang valid. Kembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_03 jika nama string tidak diketahui. Perhatikan bahwa ini adalah metode daripada string tetap terutama karena beberapa subclass ingin mengembalikan nama yang berbeda tergantung pada nilai spesifik dari dt yang diteruskan, terutama jika kelas memperhitungkan waktu siang hari
Implementasi standar kenaikan gaji
Metode-metode ini dipanggil oleh objek atau, sebagai tanggapan atas metode mereka dengan nama yang sama. Objek meneruskan dirinya sendiri sebagai argumen, dan objek meneruskan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 sebagai argumen. Oleh karena itu, metode subkelas harus disiapkan untuk menerima argumen dt dari
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03, atau dari kelas
Saat
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_03 diteruskan, terserah desainer kelas untuk memutuskan respons terbaik. Misalnya, mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]03 sesuai jika kelas ingin mengatakan bahwa objek waktu tidak berpartisipasi dalam protokol. Mungkin akan lebih berguna bagi
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]_78 untuk mengembalikan offset standar UTC, karena tidak ada konvensi lain untuk menemukan offset standar
Ketika sebuah objek diteruskan sebagai respons terhadap suatu metode,
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]81 adalah objek yang sama dengan self. metode dapat mengandalkan ini, kecuali kode pengguna memanggil metode secara langsung. Maksudnya adalah metode menafsirkan dt sebagai waktu lokal, dan tidak perlu khawatir tentang objek di zona waktu lain
Ada satu metode lagi yang mungkin ingin ditimpa oleh subclass
tzinfo. fromutc[dt]Ini dipanggil dari implementasi default. Saat dipanggil dari situ,
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]81 adalah self, dan data tanggal dan waktu dt harus dilihat sebagai menyatakan waktu UTC. Tujuannya adalah untuk menyesuaikan data tanggal dan waktu, mengembalikan waktu yang setara dalam waktu lokal sendiri
Sebagian besar subclass harus dapat mewarisi implementasi default tanpa masalah. Ini cukup kuat untuk menangani zona waktu fixed-offset, dan zona waktu memperhitungkan waktu standar dan siang hari, dan yang terakhir bahkan jika waktu transisi DST berbeda di tahun yang berbeda. Contoh zona waktu yang implementasi defaultnya mungkin tidak ditangani dengan benar dalam semua kasus adalah di mana offset standar [dari UTC] bergantung pada tanggal dan waktu tertentu yang berlalu, yang dapat terjadi karena alasan politik. Implementasi default dari
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_72 dan mungkin tidak menghasilkan hasil yang Anda inginkan jika hasilnya adalah salah satu jam yang mengangkang saat offset standar berubah
Melewatkan kode untuk kasus kesalahan, seperti implementasi default
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_1
Dalam file
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]_95 berikut ada beberapa contoh kelas
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_2
Note that there are unavoidable subtleties twice per year in a subclass accounting for both standard and daylight time, at the DST transition points. Untuk konkretnya, pertimbangkan US Eastern [UTC -0500], di mana EDT dimulai menit setelah 1. 59 [EST] pada hari Minggu kedua bulan Maret, dan berakhir menit setelah 1. 59 [EDT] pada hari Minggu pertama bulan November
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_3
Saat DST dimulai [baris "mulai"], jam dinding lokal melompat dari 1. 59 sampai 3. 00. Waktu dinding dalam bentuk 2. MM tidak masuk akal pada hari itu, jadi
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]98 tidak akan memberikan hasil dengan
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]99 pada hari DST dimulai. Misalnya, pada transisi maju musim semi tahun 2016, kita dapatkan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_4
Saat DST berakhir ["garis akhir"], ada potensi masalah yang lebih buruk. ada satu jam yang tidak bisa dieja dengan jelas dalam waktu dinding lokal. jam terakhir siang hari. Di Timur, itu adalah waktu dalam bentuk 5. MM UTC pada hari waktu siang hari berakhir. Jam dinding lokal melompat dari 1. 59 [waktu siang hari] kembali ke 1. 00 [waktu standar] lagi. Waktu setempat dalam bentuk 1. MM ambigu.
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False_72 meniru perilaku jam lokal dengan memetakan dua jam UTC yang berdekatan ke jam lokal yang sama kemudian. Dalam contoh Timur, waktu UTC dalam bentuk 5. MM dan 6. MM keduanya dipetakan ke 1. MM saat dikonversi ke Timur, tetapi waktu sebelumnya memiliki atribut yang disetel ke 0 dan waktu selanjutnya disetel ke 1. Misalnya, pada transisi musim gugur tahun 2016, kami mendapatkan
>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False5
Perhatikan bahwa instance yang berbeda hanya dengan nilai atribut dianggap sama dalam perbandingan
Aplikasi yang tidak tahan dengan ambiguitas dinding-waktu harus secara eksplisit memeriksa nilai atribut atau menghindari penggunaan subkelas hibrid;
See also
Basis data zona waktu IANAModul ini memiliki kelas dasar [untuk menangani offset tetap arbitrer dari UTC] dan atributnya [contoh zona waktu UTC]
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'1 membawa basis data zona waktu IANA [juga dikenal sebagai basis data Olson] ke Python, dan penggunaannya disarankan
Basis Data Zona Waktu [sering disebut tz, tzdata, atau zoneinfo] berisi kode dan data yang mewakili riwayat waktu setempat untuk banyak lokasi representatif di seluruh dunia. Ini diperbarui secara berkala untuk mencerminkan perubahan yang dibuat oleh badan politik terhadap batas zona waktu, offset UTC, dan aturan penghematan waktu siang hari
Objects
Kelas tersebut adalah subkelas dari , setiap turunannya mewakili zona waktu yang ditentukan oleh offset tetap dari UTC
Objek dari kelas ini tidak dapat digunakan untuk merepresentasikan informasi zona waktu di lokasi di mana offset yang berbeda digunakan pada hari yang berbeda dalam setahun atau di mana perubahan historis telah dibuat ke waktu sipil
kelas tanggal waktu. zona waktu[offset , nama=None]Argumen offset harus ditentukan sebagai objek yang mewakili perbedaan antara waktu lokal dan UTC. Itu harus benar-benar antara
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]_26 dan
>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]27, jika tidak dinaikkan
Argumen nama bersifat opsional. Jika ditentukan, itu harus berupa string yang akan digunakan sebagai nilai yang dikembalikan oleh metode
New in version 3. 2
Berubah di versi 3. 7. Offset UTC tidak terbatas pada jumlah menit penuh.
zona waktu. utcoffset[dt]Mengembalikan nilai tetap yang ditentukan saat instance dibuat
Argumen dt diabaikan. Nilai yang dikembalikan adalah instance yang sama dengan perbedaan antara waktu lokal dan UTC
Berubah di versi 3. 7. Offset UTC tidak terbatas pada jumlah menit penuh.
zona waktu. tzname[dt]Mengembalikan nilai tetap yang ditentukan saat instance dibuat
Jika nama tidak diberikan dalam konstruktor, nama yang dikembalikan oleh
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]24 dihasilkan dari nilai
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]25 sebagai berikut. Jika offset adalah
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]83, namanya adalah "UTC", jika tidak, itu adalah string dalam format
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]27, di mana ± adalah tanda
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]25, HH dan MM adalah dua digit
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]29 dan
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]30 masing-masing
Berubah di versi 3. 6. Nama yang dihasilkan dari
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]31 sekarang polos
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]32, bukan
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]33. zona waktu. dst[dt]
Selalu mengembalikan
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]_03zona waktu. fromutc[dt]
Kembalikan
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_35. Argumen dt harus menjadi contoh sadar, dengan
>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'4 diatur ke
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]38
Class attributes
zona waktu. utcZona waktu UTC,
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_39
>>> from datetime import date
>>> date.fromisoformat['2019-12-04']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['20191204']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['2021-W01-1']
datetime.date[2021, 1, 4]
_40 dan >>> from datetime import date
>>> date.fromisoformat['2019-12-04']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['20191204']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['2021-W01-1']
datetime.date[2021, 1, 4]
41 Perilaku
, , dan objek semuanya mendukung metode
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_45, untuk membuat string yang mewakili waktu di bawah kendali string format eksplisit
Sebaliknya, metode kelas membuat objek dari string yang mewakili tanggal dan waktu dan format string yang sesuai
Tabel di bawah memberikan perbandingan tingkat tinggi
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]40 versus
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]41
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_50
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_51
Penggunaan
Konversi objek menjadi string sesuai dengan format yang diberikan
Parsing string ke objek yang diberi format yang sesuai
Jenis metode
Metode instan
Metode kelas
Metode dari
;
Tanda tangan
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_45
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_58
>>> from datetime import date
>>> date.fromisoformat['2019-12-04']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['20191204']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['2021-W01-1']
datetime.date[2021, 1, 4]
_40 dan >>> from datetime import date
>>> date.fromisoformat['2019-12-04']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['20191204']
datetime.date[2019, 12, 4]
>>> date.fromisoformat['2021-W01-1']
datetime.date[2021, 1, 4]
41 Kode Format
Berikut ini adalah daftar semua kode format yang diperlukan oleh standar C 1989, dan ini berfungsi di semua platform dengan implementasi C standar
Pengarahan
Arti
Contoh
Catatan
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_61
Hari kerja sebagai nama singkatan lokal
Sun, Mon, …, Sat [en_US];
So, Mo, …, Sa [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_62
Hari kerja sebagai nama lengkap lokal
Minggu, Senin, …, Sabtu [en_US];
Sonntag, Montag, …, Samstag [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]_63
Hari kerja sebagai angka desimal, di mana 0 adalah hari Minggu dan 6 adalah hari Sabtu
0, 1, …, 6
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]64
Day of the month as a zero-padded decimal number
01, 02, …, 31
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]65
Month as locale’s abbreviated name
Jan, Feb, …, Dec [en_US];
Jan, Feb, …, Dez [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]66
Month as locale’s full name
January, February, …, December [en_US];
Januar, Februar, …, Dezember [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]67
Month as a zero-padded decimal number
01, 02, …, 12
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]68
Year without century as a zero-padded decimal number
00, 01, …, 99
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]69
Year with century as a decimal number
0001, 0002, …, 2013, 2014, …, 9998, 9999
[2]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]70
Hour [24-hour clock] as a zero-padded decimal number
00, 01, …, 23
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]71
Hour [12-hour clock] as a zero-padded decimal number
01, 02, …, 12
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]72
Locale’s equivalent of either AM or PM
AM, PM [en_US];
am, pm [de_DE]
[1], [3]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]73
Minute as a zero-padded decimal number
00, 01, …, 59
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]74
Second as a zero-padded decimal number
00, 01, …, 59
[4], [9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]75
Microsecond as a decimal number, zero-padded to 6 digits
000000, 000001, …, 999999
[5]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]76
UTC offset in the form
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]77 [empty string if the object is naive]
[empty], +0000, -0400, +1030, +063415, -030712. 345216
[6]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]78
Time zone name [empty string if the object is naive]
[empty], UTC, GMT
[6]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]79
Day of the year as a zero-padded decimal number
001, 002, …, 366
[9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]80
Week number of the year [Sunday as the first day of the week] as a zero-padded decimal number. All days in a new year preceding the first Sunday are considered to be in week 0
00, 01, …, 53
[7], [9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]81
Week number of the year [Monday as the first day of the week] as a zero-padded decimal number. All days in a new year preceding the first Monday are considered to be in week 0
00, 01, …, 53
[7], [9]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]82
Locale’s appropriate date and time representation
Tue Aug 16 21. 30. 00 1988 [en_US];
Di 16 Aug 21. 30. 00 1988 [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]83
Locale’s appropriate date representation
08/16/88 [None];
08/16/1988 [en_US];
16. 08. 1988 [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]84
Locale’s appropriate time representation
21. 30. 00 [en_US];
21. 30. 00 [de_DE]
[1]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]85
A literal
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]86 character
%
Several additional directives not required by the C89 standard are included for convenience. These parameters all correspond to ISO 8601 date values
Pengarahan
Arti
Contoh
Catatan
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]87
ISO 8601 year with century representing the year that contains the greater part of the ISO week [
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]88]
0001, 0002, …, 2013, 2014, …, 9998, 9999
[8]
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]89
ISO 8601 weekday as a decimal number where 1 is Monday
1, 2, …, 7
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]88
ISO 8601 week as a decimal number with Monday as the first day of the week. Week 01 is the week containing Jan 4
01, 02, …, 53
[8], [9]
These may not be available on all platforms when used with the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]40 method. The ISO 8601 year and ISO 8601 week directives are not interchangeable with the year and week number directives above. Memanggil
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]41 dengan arahan ISO 8601 yang tidak lengkap atau ambigu akan meningkatkan
The full set of format codes supported varies across platforms, because Python calls the platform C library’s
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]40 function, and platform variations are common. To see the full set of format codes supported on your platform, consult the strftime[3] documentation. There are also differences between platforms in handling of unsupported format specifiers
New in version 3. 6.
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]87,
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]89 and
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]88 were added.
Detil Teknis
Secara umum,
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]98 bertindak seperti
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]00 modul meskipun tidak semua objek mendukung metode
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]42
Untuk metode kelas, nilai defaultnya adalah
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]03. any components not specified in the format string will be pulled from the default value.
Menggunakan
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]_04 sama dengan
>>> from datetime import timedelta >>> d = timedelta[microseconds=-1] >>> [d.days, d.seconds, d.microseconds] [-1, 86399, 999999]1
kecuali jika format menyertakan komponen sub-detik atau informasi offset zona waktu, yang didukung di
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]05 tetapi dibuang oleh
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]06
Untuk objek, kode format tahun, bulan, dan hari tidak boleh digunakan, karena objek tidak memiliki nilai seperti itu. Jika tetap digunakan,
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]09 diganti untuk tahun, dan
>>> # Components of another_year add up to exactly 365 days >>> from datetime import timedelta >>> year = timedelta[days=365] >>> another_year = timedelta[weeks=40, days=84, hours=23, .. minutes=50, seconds=600] >>> year == another_year True >>> year.total_seconds[] 31536000.05 untuk bulan dan hari
For objects, the format codes for hours, minutes, seconds, and microseconds should not be used, as objects have no such values. If they’re used anyway,
>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]14 is substituted for them
For the same reason, handling of format strings containing Unicode code points that can’t be represented in the charset of the current locale is also platform-dependent. On some platforms such code points are preserved intact in the output, while on others
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]50 may raise or return an empty string instead
Catatan
Because the format depends on the current locale, care should be taken when making assumptions about the output value. Field orderings will vary [for example, “month/day/year” versus “day/month/year”], and the output may contain Unicode characters encoded using the locale’s default encoding [for example, if the current locale is
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
16, the default encoding could be any one of>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
17,>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
18, or>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
19; use to determine the current locale’s encoding]The
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method can parse years in the full [1, 9999] range, but years < 1000 must be zero-filled to 4-digit widthChanged in version 3. 2. In previous versions,
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
40 method was restricted to years >= 1900.Changed in version 3. 3. In version 3. 2,
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
40 method was restricted to years >= 1000.When used with the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method, the>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
72 directive only affects the output hour field if the>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
71 directive is used to parse the hourUnlike the module, the module does not support leap seconds
When used with the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method, the>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
75 directive accepts from one to six digits and zero pads on the right.>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
75 is an extension to the set of format characters in the C standard [but implemented separately in datetime objects, and therefore always available]For a naive object, the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
76 and>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
78 format codes are replaced by empty stringsFor an aware object
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
76>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
57 is transformed into a string of the form>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
77, where>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
67 is a 2-digit string giving the number of UTC offset hours,>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
38 is a 2-digit string giving the number of UTC offset minutes,>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
39 is a 2-digit string giving the number of UTC offset seconds and>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
40 is a 6-digit string giving the number of UTC offset microseconds. The>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
40 part is omitted when the offset is a whole number of seconds and both the>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
40 and the>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
39 part is omitted when the offset is a whole number of minutes. For example, if>>> from datetime import timedelta >>> delta1 = timedelta[seconds=57] >>> delta2 = timedelta[hours=25, seconds=2] >>> delta2 != delta1 True >>> delta2 == 5 False
57 returns>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
45,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
76 is replaced with the string>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
47Berubah di versi 3. 7. Offset UTC tidak terbatas pada jumlah menit penuh.
Changed in version 3. 7. When the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
76 directive is provided to the>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method, the UTC offsets can have a colon as a separator between hours, minutes and seconds. For example,>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
50 will be parsed as an offset of one hour. In addition, providing>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
51 is identical to>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
52.>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
78In
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
40,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
78 is replaced by an empty string if>>> from datetime import timedelta >>> year = timedelta[days=365] >>> ten_years = 10 * year >>> ten_years datetime.timedelta[days=3650] >>> ten_years.days // 365 10 >>> nine_years = ten_years - year >>> nine_years datetime.timedelta[days=3285] >>> three_years = nine_years // 3 >>> three_years, three_years.days // 365 [datetime.timedelta[days=1095], 3]
65 returns>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
03; otherwise>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
78 is replaced by the returned value, which must be a string>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 only accepts certain values for>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
78any value in
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
61 for your machine’s localethe hard-coded values
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
62 and>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
63
So someone living in Japan may have
>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
64,>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
62, and>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
63 as valid values, but probably not>>> from datetime import date >>> d = date[2002, 12, 31] >>> d.replace[day=26] datetime.date[2002, 12, 26]
67. It will raise>>> from datetime import timedelta >>> delta = timedelta[ .. days=50, .. seconds=27, .. microseconds=10, .. milliseconds=29000, .. minutes=5, .. hours=8, .. weeks=2 .. ] >>> # Only days, seconds, and microseconds remain >>> delta datetime.timedelta[days=64, seconds=29156, microseconds=10]
93 for invalid valuesChanged in version 3. 2. When the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
76 directive is provided to the>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method, an aware object will be produced. The>>> delta2 > delta1 True >>> delta2 > 5 Traceback [most recent call last]: File "", line 1, in TypeError: '>' not supported between instances of 'datetime.timedelta' and 'int'
4 of the result will be set to a instance.When used with the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
80 and>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
81 are only used in calculations when the day of the week and the calendar year [>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
69] are specifiedSimilar to
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
80 and>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
81,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
88 is only used in calculations when the day of the week and the ISO year [>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
87] are specified in a>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 format string. Also note that>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
87 and>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
69 are not interchangeableWhen used with the
>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
41 method, the leading zero is optional for formats>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
64,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
67,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
70,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
71,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
73,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
74,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
79,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
80,>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
81, and>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
88. Format>>> from datetime import date >>> date.fromisoformat['2019-12-04'] datetime.date[2019, 12, 4] >>> date.fromisoformat['20191204'] datetime.date[2019, 12, 4] >>> date.fromisoformat['2021-W01-1'] datetime.date[2021, 1, 4]
68 does require a leading zero
Footnotes
If, that is, we ignore the effects of Relativity
This matches the definition of the “proleptic Gregorian” calendar in Dershowitz and Reingold’s book Calendrical Calculations, where it’s the base calendar for all computations. See the book for algorithms for converting between proleptic Gregorian ordinals and many other calendar systems