PHP 5.5.37 is released

Others

Others
Africa/Asmera Africa/Timbuktu America/Argentina/ComodRivadavia America/Atka
America/Buenos_Aires America/Catamarca America/Coral_Harbour America/Cordoba
America/Ensenada America/Fort_Wayne America/Indianapolis America/Jujuy
America/Knox_IN America/Louisville America/Mendoza America/Montreal
America/Porto_Acre America/Rosario America/Santa_Isabel America/Shiprock
America/Virgin Antarctica/South_Pole Asia/Ashkhabad Asia/Calcutta
Asia/Chongqing Asia/Chungking Asia/Dacca Asia/Harbin
Asia/Istanbul Asia/Kashgar Asia/Katmandu Asia/Macao
Asia/Saigon Asia/Tel_Aviv Asia/Thimbu Asia/Ujung_Pandang
Asia/Ulan_Bator Atlantic/Faeroe Atlantic/Jan_Mayen Australia/ACT
Australia/Canberra Australia/LHI Australia/North Australia/NSW
Australia/Queensland Australia/South Australia/Tasmania Australia/Victoria
Australia/West Australia/Yancowinna Brazil/Acre Brazil/DeNoronha
Brazil/East Brazil/West Canada/Atlantic Canada/Central
Canada/East-Saskatchewan Canada/Eastern Canada/Mountain Canada/Newfoundland
Canada/Pacific Canada/Saskatchewan Canada/Yukon CET
Chile/Continental Chile/EasterIsland CST6CDT Cuba
EET Egypt Eire EST
EST5EDT Etc/GMT Etc/GMT+0 Etc/GMT+1
Etc/GMT+10 Etc/GMT+11 Etc/GMT+12 Etc/GMT+2
Etc/GMT+3 Etc/GMT+4 Etc/GMT+5 Etc/GMT+6
Etc/GMT+7 Etc/GMT+8 Etc/GMT+9 Etc/GMT-0
Etc/GMT-1 Etc/GMT-10 Etc/GMT-11 Etc/GMT-12
Etc/GMT-13 Etc/GMT-14 Etc/GMT-2 Etc/GMT-3
Etc/GMT-4 Etc/GMT-5 Etc/GMT-6 Etc/GMT-7
Etc/GMT-8 Etc/GMT-9 Etc/GMT0 Etc/Greenwich
Etc/UCT Etc/Universal Etc/UTC Etc/Zulu
Europe/Belfast Europe/Nicosia Europe/Tiraspol Factory
GB GB-Eire GMT GMT+0
GMT-0 GMT0 Greenwich Hongkong
HST Iceland Iran Israel
Jamaica Japan Kwajalein Libya
MET Mexico/BajaNorte Mexico/BajaSur Mexico/General
MST MST7MDT Navajo NZ
NZ-CHAT Pacific/Ponape Pacific/Samoa Pacific/Truk
Pacific/Yap Poland Portugal PRC
PST8PDT ROC ROK Singapore
Turkey UCT Universal US/Alaska
US/Aleutian US/Arizona US/Central US/East-Indiana
US/Eastern US/Hawaii US/Indiana-Starke US/Michigan
US/Mountain US/Pacific US/Pacific-New US/Samoa
UTC W-SU WET Zulu
Warning

Please do not use any of the timezones listed here (besides UTC), they only exist for backward compatible reasons.

Warning

If you disregard the above warning, please also note that the IANA timezone database that provides PHP's timezone support uses POSIX style signs, which results in the Etc/GMT+n and Etc/GMT-n time zones being reversed from common usage.

For example, the time zone 8 hours ahead of GMT that is used in China and Western Australia (among other places) is actually Etc/GMT-8 in this database, not Etc/GMT+8 as you would normally expect.

Once again, it is strongly recommended that you use the correct time zone for your location, such as Asia/Shanghai or Australia/Perth for the above examples.

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User Contributed Notes 2 notes

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aanderson at amherst dot edu
2 years ago
Don’t use 'EST', at least in PHP 5.3.3 it’s the same as 'EST5EDT' rather than being strictly standard time.  The only reliable way I’ve found to interpret a time as standard time is to use a UTC-relative format such as:

$dateObject = date_create("2013-06-30 07:00:00-0500");
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-6
Samuel Horwitz
4 years ago
Take note that while EST and MST are valid, according to this list, PST and CST are not. I am not sure why, but it has caught me off guard. However, if using the DST versions of the "American" timezone strings, you have all four: EST5EDT, CST6CDT, MST7MDT and PST8PDT.
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