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/Nipigon America/Pangnirtung America/Porto_Acre
America/Rainy_River America/Rosario America/Santa_Isabel America/Shiprock
America/Thunder_Bay America/Virgin America/Yellowknife 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 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/Kiev Europe/Nicosia Europe/Tiraspol Europe/Uzhgorod
Europe/Zaporozhye 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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