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Please do not use any of the timezones listed here (besides UTC), they only exist for backward compatible reasons, and may expose erroneous behavior. Furthermore, these timezones may be removed from the IANA timezone database at any time.


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.

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/Godthab 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/Rangoon Asia/Saigon Asia/Tel_Aviv
Asia/Thimbu Asia/Ujung_Pandang Asia/Ulan_Bator Atlantic/Faeroe
Atlantic/Jan_Mayen Australia/ACT Australia/Canberra Australia/Currie
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/Eastern
Canada/Mountain Canada/Newfoundland Canada/Pacific Canada/Saskatchewan
Canada/Yukon CET Chile/Continental Chile/EasterIsland
CST6CDT Cuba EET Egypt
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
Greenwich Hongkong HST Iceland
Iran Israel Jamaica Japan
Kwajalein Libya MET Mexico/BajaNorte
Mexico/BajaSur Mexico/General MST MST7MDT
Navajo NZ NZ-CHAT Pacific/Enderbury
Pacific/Johnston Pacific/Ponape Pacific/Samoa Pacific/Truk
Pacific/Yap Poland Portugal PRC
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/Samoa UTC
W-SU WET Zulu  
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