IANA Time Zones

The IANA / Olson database is the canonical list of named time zones used by every major operating system, programming language, and database. The directory below contains all 417 currently supported zones — pick any leaf for current local time, UTC offset, and the cities it covers.

Africa

Abidjan Africa/Abidjan Accra Africa/Accra Addis Ababa Africa/Addis_Ababa Algiers Africa/Algiers Asmera Africa/Asmera Bamako Africa/Bamako Bangui Africa/Bangui Banjul Africa/Banjul Bissau Africa/Bissau Blantyre Africa/Blantyre Brazzaville Africa/Brazzaville Bujumbura Africa/Bujumbura Cairo Africa/Cairo Casablanca Africa/Casablanca Ceuta Africa/Ceuta Conakry Africa/Conakry Dakar Africa/Dakar Dar es Salaam Africa/Dar_es_Salaam Djibouti Africa/Djibouti Douala Africa/Douala El Aaiun Africa/El_Aaiun Freetown Africa/Freetown Gaborone Africa/Gaborone Harare Africa/Harare Johannesburg Africa/Johannesburg Juba Africa/Juba Kampala Africa/Kampala Khartoum Africa/Khartoum Kigali Africa/Kigali Kinshasa Africa/Kinshasa Lagos Africa/Lagos Libreville Africa/Libreville Lome Africa/Lome Luanda Africa/Luanda Lubumbashi Africa/Lubumbashi Lusaka Africa/Lusaka Malabo Africa/Malabo Maputo Africa/Maputo Maseru Africa/Maseru Mbabane Africa/Mbabane Mogadishu Africa/Mogadishu Monrovia Africa/Monrovia Nairobi Africa/Nairobi Ndjamena Africa/Ndjamena Niamey Africa/Niamey Nouakchott Africa/Nouakchott Ouagadougou Africa/Ouagadougou Porto-Novo Africa/Porto-Novo Sao Tome Africa/Sao_Tome Tripoli Africa/Tripoli Tunis Africa/Tunis Windhoek Africa/Windhoek

America

Adak America/Adak Anchorage America/Anchorage Anguilla America/Anguilla Antigua America/Antigua Araguaina America/Araguaina Argentina/La Rioja America/Argentina/La_Rioja Argentina/Rio Gallegos America/Argentina/Rio_Gallegos Argentina/Salta America/Argentina/Salta Argentina/San Juan America/Argentina/San_Juan Argentina/San Luis America/Argentina/San_Luis Argentina/Tucuman America/Argentina/Tucuman Argentina/Ushuaia America/Argentina/Ushuaia Aruba America/Aruba Asuncion America/Asuncion Bahia America/Bahia Bahia Banderas America/Bahia_Banderas Barbados America/Barbados Belem America/Belem Belize America/Belize Blanc-Sablon America/Blanc-Sablon Boa Vista America/Boa_Vista Bogota America/Bogota Boise America/Boise Buenos Aires America/Buenos_Aires Cambridge Bay America/Cambridge_Bay Campo Grande America/Campo_Grande Cancun America/Cancun Caracas America/Caracas Catamarca America/Catamarca Cayenne America/Cayenne Cayman America/Cayman Chicago America/Chicago Chihuahua America/Chihuahua Ciudad Juarez America/Ciudad_Juarez Coral Harbour America/Coral_Harbour Cordoba America/Cordoba Costa Rica America/Costa_Rica Creston America/Creston Cuiaba America/Cuiaba Curacao America/Curacao Danmarkshavn America/Danmarkshavn Dawson America/Dawson Dawson Creek America/Dawson_Creek Denver America/Denver Detroit America/Detroit Dominica America/Dominica Edmonton America/Edmonton Eirunepe America/Eirunepe El Salvador America/El_Salvador Fort Nelson America/Fort_Nelson Fortaleza America/Fortaleza Glace Bay America/Glace_Bay Godthab America/Godthab Goose Bay America/Goose_Bay Grand Turk America/Grand_Turk Grenada America/Grenada Guadeloupe America/Guadeloupe Guatemala America/Guatemala Guayaquil America/Guayaquil Guyana America/Guyana Halifax America/Halifax Havana America/Havana Hermosillo America/Hermosillo Indiana/Knox America/Indiana/Knox Indiana/Marengo America/Indiana/Marengo Indiana/Petersburg America/Indiana/Petersburg Indiana/Tell City America/Indiana/Tell_City Indiana/Vevay America/Indiana/Vevay Indiana/Vincennes America/Indiana/Vincennes Indiana/Winamac America/Indiana/Winamac Indianapolis America/Indianapolis Inuvik America/Inuvik Iqaluit America/Iqaluit Jamaica America/Jamaica Jujuy America/Jujuy Juneau America/Juneau Kentucky/Monticello America/Kentucky/Monticello Kralendijk America/Kralendijk La Paz America/La_Paz Lima America/Lima Los Angeles America/Los_Angeles Louisville America/Louisville Lower Princes America/Lower_Princes Maceio America/Maceio Managua America/Managua Manaus America/Manaus Marigot America/Marigot Martinique America/Martinique Matamoros America/Matamoros Mazatlan America/Mazatlan Mendoza America/Mendoza Menominee America/Menominee Merida America/Merida Metlakatla America/Metlakatla Mexico City America/Mexico_City Miquelon America/Miquelon Moncton America/Moncton Monterrey America/Monterrey Montevideo America/Montevideo Montserrat America/Montserrat Nassau America/Nassau New York America/New_York Nome America/Nome Noronha America/Noronha North Dakota/Beulah America/North_Dakota/Beulah North Dakota/Center America/North_Dakota/Center North Dakota/New Salem America/North_Dakota/New_Salem Ojinaga America/Ojinaga Panama America/Panama Paramaribo America/Paramaribo Phoenix America/Phoenix Port-au-Prince America/Port-au-Prince Port of Spain America/Port_of_Spain Porto Velho America/Porto_Velho Puerto Rico America/Puerto_Rico Punta Arenas America/Punta_Arenas Rankin Inlet America/Rankin_Inlet Recife America/Recife Regina America/Regina Resolute America/Resolute Rio Branco America/Rio_Branco Santarem America/Santarem Santiago America/Santiago Santo Domingo America/Santo_Domingo Sao Paulo America/Sao_Paulo Scoresbysund America/Scoresbysund Sitka America/Sitka St Barthelemy America/St_Barthelemy St Johns America/St_Johns St Kitts America/St_Kitts St Lucia America/St_Lucia St Thomas America/St_Thomas St Vincent America/St_Vincent Swift Current America/Swift_Current Tegucigalpa America/Tegucigalpa Thule America/Thule Tijuana America/Tijuana Toronto America/Toronto Tortola America/Tortola Vancouver America/Vancouver Whitehorse America/Whitehorse Winnipeg America/Winnipeg Yakutat America/Yakutat

Antarctica

Casey Antarctica/Casey Davis Antarctica/Davis DumontDUrville Antarctica/DumontDUrville Macquarie Antarctica/Macquarie Mawson Antarctica/Mawson McMurdo Antarctica/McMurdo Palmer Antarctica/Palmer Rothera Antarctica/Rothera Syowa Antarctica/Syowa Troll Antarctica/Troll Vostok Antarctica/Vostok

Arctic

Longyearbyen Arctic/Longyearbyen

Asia

Aden Asia/Aden Almaty Asia/Almaty Amman Asia/Amman Anadyr Asia/Anadyr Aqtau Asia/Aqtau Aqtobe Asia/Aqtobe Ashgabat Asia/Ashgabat Atyrau Asia/Atyrau Baghdad Asia/Baghdad Bahrain Asia/Bahrain Baku Asia/Baku Bangkok Asia/Bangkok Barnaul Asia/Barnaul Beirut Asia/Beirut Bishkek Asia/Bishkek Brunei Asia/Brunei Calcutta Asia/Calcutta Chita Asia/Chita Colombo Asia/Colombo Damascus Asia/Damascus Dhaka Asia/Dhaka Dili Asia/Dili Dubai Asia/Dubai Dushanbe Asia/Dushanbe Famagusta Asia/Famagusta Gaza Asia/Gaza Hebron Asia/Hebron Hong Kong Asia/Hong_Kong Hovd Asia/Hovd Irkutsk Asia/Irkutsk Jakarta Asia/Jakarta Jayapura Asia/Jayapura Jerusalem Asia/Jerusalem Kabul Asia/Kabul Kamchatka Asia/Kamchatka Karachi Asia/Karachi Katmandu Asia/Katmandu Khandyga Asia/Khandyga Krasnoyarsk Asia/Krasnoyarsk Kuala Lumpur Asia/Kuala_Lumpur Kuching Asia/Kuching Kuwait Asia/Kuwait Macau Asia/Macau Magadan Asia/Magadan Makassar Asia/Makassar Manila Asia/Manila Muscat Asia/Muscat Nicosia Asia/Nicosia Novokuznetsk Asia/Novokuznetsk Novosibirsk Asia/Novosibirsk Omsk Asia/Omsk Oral Asia/Oral Phnom Penh Asia/Phnom_Penh Pontianak Asia/Pontianak Pyongyang Asia/Pyongyang Qatar Asia/Qatar Qostanay Asia/Qostanay Qyzylorda Asia/Qyzylorda Rangoon Asia/Rangoon Riyadh Asia/Riyadh Saigon Asia/Saigon Sakhalin Asia/Sakhalin Samarkand Asia/Samarkand Seoul Asia/Seoul Shanghai Asia/Shanghai Singapore Asia/Singapore Srednekolymsk Asia/Srednekolymsk Taipei Asia/Taipei Tashkent Asia/Tashkent Tbilisi Asia/Tbilisi Tehran Asia/Tehran Thimphu Asia/Thimphu Tokyo Asia/Tokyo Tomsk Asia/Tomsk Ulaanbaatar Asia/Ulaanbaatar Urumqi Asia/Urumqi Ust-Nera Asia/Ust-Nera Vientiane Asia/Vientiane Vladivostok Asia/Vladivostok Yakutsk Asia/Yakutsk Yekaterinburg Asia/Yekaterinburg Yerevan Asia/Yerevan

Atlantic

Azores Atlantic/Azores Bermuda Atlantic/Bermuda Canary Atlantic/Canary Cape Verde Atlantic/Cape_Verde Faeroe Atlantic/Faeroe Madeira Atlantic/Madeira Reykjavik Atlantic/Reykjavik South Georgia Atlantic/South_Georgia St Helena Atlantic/St_Helena Stanley Atlantic/Stanley

Australia

Adelaide Australia/Adelaide Brisbane Australia/Brisbane Broken Hill Australia/Broken_Hill Darwin Australia/Darwin Eucla Australia/Eucla Hobart Australia/Hobart Lindeman Australia/Lindeman Lord Howe Australia/Lord_Howe Melbourne Australia/Melbourne Perth Australia/Perth Sydney Australia/Sydney

Europe

Amsterdam Europe/Amsterdam Andorra Europe/Andorra Astrakhan Europe/Astrakhan Athens Europe/Athens Belgrade Europe/Belgrade Berlin Europe/Berlin Bratislava Europe/Bratislava Brussels Europe/Brussels Bucharest Europe/Bucharest Budapest Europe/Budapest Busingen Europe/Busingen Chisinau Europe/Chisinau Copenhagen Europe/Copenhagen Dublin Europe/Dublin Gibraltar Europe/Gibraltar Guernsey Europe/Guernsey Helsinki Europe/Helsinki Isle of Man Europe/Isle_of_Man Istanbul Europe/Istanbul Jersey Europe/Jersey Kaliningrad Europe/Kaliningrad Kiev Europe/Kiev Kirov Europe/Kirov Lisbon Europe/Lisbon Ljubljana Europe/Ljubljana London Europe/London Luxembourg Europe/Luxembourg Madrid Europe/Madrid Malta Europe/Malta Mariehamn Europe/Mariehamn Minsk Europe/Minsk Monaco Europe/Monaco Moscow Europe/Moscow Oslo Europe/Oslo Paris Europe/Paris Podgorica Europe/Podgorica Prague Europe/Prague Riga Europe/Riga Rome Europe/Rome Samara Europe/Samara San Marino Europe/San_Marino Sarajevo Europe/Sarajevo Saratov Europe/Saratov Simferopol Europe/Simferopol Skopje Europe/Skopje Sofia Europe/Sofia Stockholm Europe/Stockholm Tallinn Europe/Tallinn Tirane Europe/Tirane Ulyanovsk Europe/Ulyanovsk Vaduz Europe/Vaduz Vatican Europe/Vatican Vienna Europe/Vienna Vilnius Europe/Vilnius Volgograd Europe/Volgograd Warsaw Europe/Warsaw Zagreb Europe/Zagreb Zurich Europe/Zurich

Indian

Antananarivo Indian/Antananarivo Chagos Indian/Chagos Christmas Indian/Christmas Cocos Indian/Cocos Comoro Indian/Comoro Kerguelen Indian/Kerguelen Mahe Indian/Mahe Maldives Indian/Maldives Mauritius Indian/Mauritius Mayotte Indian/Mayotte Reunion Indian/Reunion

Pacific

Apia Pacific/Apia Auckland Pacific/Auckland Bougainville Pacific/Bougainville Chatham Pacific/Chatham Easter Pacific/Easter Efate Pacific/Efate Enderbury Pacific/Enderbury Fakaofo Pacific/Fakaofo Fiji Pacific/Fiji Funafuti Pacific/Funafuti Galapagos Pacific/Galapagos Gambier Pacific/Gambier Guadalcanal Pacific/Guadalcanal Guam Pacific/Guam Honolulu Pacific/Honolulu Kiritimati Pacific/Kiritimati Kosrae Pacific/Kosrae Kwajalein Pacific/Kwajalein Majuro Pacific/Majuro Marquesas Pacific/Marquesas Midway Pacific/Midway Nauru Pacific/Nauru Niue Pacific/Niue Norfolk Pacific/Norfolk Noumea Pacific/Noumea Pago Pago Pacific/Pago_Pago Palau Pacific/Palau Pitcairn Pacific/Pitcairn Ponape Pacific/Ponape Port Moresby Pacific/Port_Moresby Rarotonga Pacific/Rarotonga Saipan Pacific/Saipan Tahiti Pacific/Tahiti Tarawa Pacific/Tarawa Tongatapu Pacific/Tongatapu Truk Pacific/Truk Wake Pacific/Wake Wallis Pacific/Wallis

About the IANA database

The IANA Time Zone Database (also called the Olson database, after its original maintainer) is the de-facto standard for representing time zones. It is updated several times a year as countries adjust their daylight saving rules or change zones.

Each zone is named for a representative settlement — for example Europe/London, America/Los_Angeles, or Asia/Tokyo. All historical and future offset rules for that region are stored under the zone name, which is why software prefers IANA zones over fixed numeric offsets.