Is there just a list of time zones for the united states I can use with php? Im using the timezone names from php such as America/Anchorage, php lists time zones here:
http://us.php.net/manual/en/timezones.others.php
I want to
display them in a drop down for the user to select but I only need the ones for the US, I dont want to show a bunch that are outside the US.
asked Feb 14, 2011 at 5:48
6
Here is a list I found:
Eastern Time America/New_York
Central Time America/Chicago
Mountain Time America/Denver
Mountain Time (no DST) America/Phoenix
Pacific Time America/Los_Angeles
Alaska Time America/Anchorage
Hawaii-Aleutian America/Adak
Hawaii-Aleutian Time (no DST) Pacific/Honolulu
answered Feb 14, 2011 at 6:01
JohnJohn
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As deceze said, you can use the PER_COUNTRY flag.
$timezone_identifiers = DateTimeZone::listIdentifiers(DateTimeZone::PER_COUNTRY, 'US');
foreach($timezone_identifiers as $timezone_identifier) {
echo "$timezone_identifier\n";
}
Output:
America/Adak
America/Anchorage
America/Boise
America/Chicago
America/Denver
America/Detroit
America/Indiana/Indianapolis
America/Indiana/Knox
America/Indiana/Marengo
America/Indiana/Petersburg
America/Indiana/Tell_City
America/Indiana/Vevay
America/Indiana/Vincennes
America/Indiana/Winamac
America/Juneau
America/Kentucky/Louisville
America/Kentucky/Monticello
America/Los_Angeles
America/Menominee
America/Metlakatla
America/New_York
America/Nome
America/North_Dakota/Beulah
America/North_Dakota/Center
America/North_Dakota/New_Salem
America/Phoenix
America/Shiprock
America/Sitka
America/Yakutat
Pacific/Honolulu
answered Sep 10, 2012 at 20:31
jgrowljgrowl
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This will automatically get you a list of American timezones:
if (defined('DateTimeZone::AMERICA')) {
// PHP 5.3+
$timezoneIdentifiers = timezone_identifiers_list(DateTimeZone::AMERICA);
} else {
// PHP 5.2
$timezoneIdentifiers = timezone_identifiers_list();
$timezoneIdentifiers = array_filter($timezoneIdentifiers, create_function('$tz', 'return preg_match("/^America\//", $tz);'));
}
Note that this will include South American, Canadian etc timezones as well though. You could play around with DateTimeZone::PER_COUNTRY
as a filter to timezone_identifiers_list
for PHP 5.3 and see if that gets you want you want, or filter the complete list for US/
. The best choice is probably to handpick the
timezones though.
answered Feb 14, 2011 at 5:55
deceze♦deceze
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Brute-force way to get ALL timezones per country using PHP's GEOIP. The code is not intended to look nice. You should call this only once and store the result somewhere.
$timezones = array();
foreach (range('A', 'Z') as $i) {
foreach (range('A', 'Z') as $j) {
$country = $i . $j;
foreach (range('A', 'Z') as $k) {
foreach (range('A', 'Z') as $l) {
$region = $k . $l;
if ($timezone = geoip_time_zone_by_country_and_region($country, $region)) {
$timezones[$country][$timezone] = true;
}
}
}
foreach (range(0, 99) as $m) {
if ($timezone = geoip_time_zone_by_country_and_region($country, sprintf('%02d', $m))) {
$timezones[$country][$timezone] = true;
}
}
}
}
var_dump($timezones);
answered Feb 13, 2014 at 8:50
maryomaryo
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