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| Time Zone

  • ISO Format:
  • UTC Offset:
  • UTC (DST) Offset:

The time zone "Etc/GMT-13" is part of the IANA time zone database and is typically used in UNIX-like operating systems. Below is an in-depth description:

Definition and Purpose

  • Etc/GMT-13 represents a time zone that is thirteen hours ahead of Greenwich Mean Time (GMT).
  • The "Etc" prefix is utilized for miscellaneous time zones in the IANA time zone database.
  • It denotes the mean solar time at the Greenwich Meridian plus thirteen hours, without any daylight saving adjustments.

Characteristics

  • Time Offset: Etc/GMT-13 has a standard time offset of +13:00 from GMT. Despite the notation "-13," it signifies that the time is thirteen hours ahead of GMT. This is a convention in the "Etc" time zones, where negative numbers indicate hours ahead of GMT.
  • Daylight Saving Time: Etc/GMT-13 does not observe Daylight Saving Time (DST). The time remains constant throughout the year.
  • Naming Convention: The "Etc" time zones use a reversed naming system. For example, "Etc/GMT-13" corresponds to UTC+13:00, indicating that it is thirteen hours ahead of Coordinated Universal Time (UTC).

Usage

  • Systems and Servers: Etc/GMT-13 is commonly used in computing environments where a consistent time standard is necessary without DST adjustments. It's particularly useful in servers and systems to ensure uniform timekeeping.
  • Log Files and Timestamps: It helps maintain consistent log files and timestamps, which are essential for troubleshooting, auditing, and system monitoring.

Historical Context

  • Greenwich Mean Time (GMT): Established as the world's time standard in 1884, GMT represents the mean solar time at the Royal Observatory in Greenwich, London.
  • Coordinated Universal Time (UTC): UTC replaced GMT as the global time standard and is based on atomic time.

Key Points

  • Time Offset: Etc/GMT-13 is +13:00 from UTC, meaning Etc/GMT-13 = UTC+13:00.
  • Stability: It provides a stable time reference without variations or disruptions from DST.
  • Computational Use: Etc/GMT-13 is critical in environments where consistent, non-changing time is critical, such as databases, network devices, and global applications.

Examples of Usage

  • Networking: Network devices may use Etc/GMT-13 to ensure synchronized logging and monitoring.
  • Global Applications: Applications serving users across different time zones might use Etc/GMT-13 to maintain a consistent internal time reference.
  • Data Centers: Servers in data centers may be configured with Etc/GMT-13 for uniform timekeeping across systems.

Potential Confusion

  • Naming Peculiarity: The "-13" in "Etc/GMT-13" might seem counterintuitive, as it indicates being ahead of GMT. Users should be aware of this to avoid confusion.

Comparison with Other Time Zones

  • Relation to Other Etc/GMT Time Zones: Like other "Etc" time zones, Etc/GMT-13 follows a reversed naming convention, with the negative number indicating being ahead of GMT.
  • Difference from Standard Time Zones: Standard time zones typically do not use the "Etc" prefix and follow a more intuitive naming convention. For instance, UTC+13:00 is commonly referred to as New Zealand Daylight Time (NZDT) or Tonga Time (TOT), depending on the region.

Practical Considerations

  • International Coordination: Understanding the offset of Etc/GMT-13 is crucial for international coordination and scheduling.
  • System Configuration: Systems using Etc/GMT-13 should be configured carefully to ensure accurate timekeeping, especially when interacting with systems using other time zones.

In summary, Etc/GMT-13 is a standardized time zone that is thirteen hours ahead of UTC, providing stable timekeeping without the complexities of DST. It's commonly employed in computing environments for its consistency and simplicity, despite its unconventional naming convention.

Convert Time Zones


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Time Zones

Time Zone UTC Offset UTC DST Offset
Africa/Addis_Ababa +03:00 +03:00
Africa/Asmara +03:00 +03:00
Africa/Bamako +00:00 +00:00
Africa/Bangui +01:00 +01:00
Africa/Banjul +00:00 +00:00
Africa/Blantyre +02:00 +02:00
Africa/Brazzaville +01:00 +01:00
Africa/Bujumbura +02:00 +02:00
Africa/Conakry +00:00 +00:00
Africa/Dakar +00:00 +00:00
Africa/Dar_es_Salaam +03:00 +03:00
Africa/Djibouti +03:00 +03:00
Africa/Douala +01:00 +01:00
Africa/Freetown +00:00 +00:00
Africa/Gaborone +02:00 +02:00
Africa/Harare +02:00 +02:00
Africa/Kampala +03:00 +03:00
Africa/Kigali +02:00 +02:00
Africa/Kinshasa +01:00 +01:00
Africa/Libreville +01:00 +01:00
Africa/Lome +00:00 +00:00
Africa/Luanda +01:00 +01:00
Africa/Lubumbashi +02:00 +02:00
Africa/Lusaka +02:00 +02:00
Africa/Malabo +01:00 +01:00
Africa/Maseru +02:00 +02:00
Africa/Mbabane +02:00 +02:00
Africa/Mogadishu +03:00 +03:00
Africa/Niamey +01:00 +01:00
Africa/Nouakchott +00:00 +00:00
Africa/Ouagadougou +00:00 +00:00
Africa/Porto-Novo +01:00 +01:00
Africa/Sao_Tome +00:00 +00:00
Africa/Timbuktu +00:00 +00:00
America/Anguilla −04:00 −04:00
America/Antigua −04:00 −04:00
America/Argentina/ComodRivadavia −03:00 −03:00
America/Aruba −04:00 −04:00
America/Atka −10:00 −09:00
America/Buenos_Aires −03:00 −03:00
America/Catamarca −03:00 −03:00
America/Cayman −05:00 −05:00
America/Coral_Harbour −05:00 −05:00
America/Cordoba −03:00 −03:00
America/Dominica −04:00 −04:00
America/Ensenada −08:00 −07:00
America/Fort_Wayne −05:00 −04:00
America/Grenada −04:00 −04:00
America/Guadeloupe −04:00 −04:00
America/Indianapolis −05:00 −04:00
America/Jujuy −03:00 −03:00
America/Knox_IN −06:00 −05:00
America/Kralendijk −04:00 −04:00
America/Louisville −05:00 −04:00
America/Lower_Princes −04:00 −04:00
America/Marigot −04:00 −04:00
America/Mendoza −03:00 −03:00
America/Montreal −05:00 −04:00
America/Montserrat −04:00 −04:00
America/Porto_Acre −05:00 −05:00
America/Rosario −03:00 −03:00
America/Santa_Isabel −08:00 −07:00
America/Shiprock −07:00 −06:00
America/St_Barthelemy −04:00 −04:00
America/St_Kitts −04:00 −04:00
America/St_Lucia −04:00 −04:00
America/St_Thomas −04:00 −04:00
America/St_Vincent −04:00 −04:00
America/Tortola −04:00 −04:00
America/Virgin −04:00 −04:00
Antarctica/McMurdo +12:00 +13:00
Antarctica/South_Pole +12:00 +13:00
Arctic/Longyearbyen +01:00 +02:00
Asia/Aden +03:00 +03:00
Asia/Ashkhabad +05:00 +05:00
Asia/Bahrain +03:00 +03:00
Asia/Calcutta +05:30 +05:30
Asia/Chongqing +08:00 +08:00
Asia/Chungking +08:00 +08:00
Asia/Dacca +06:00 +06:00
Asia/Harbin +08:00 +08:00
Asia/Istanbul +03:00 +03:00
Asia/Kashgar +06:00 +06:00
Asia/Katmandu +05:45 +05:45
Asia/Kuwait +03:00 +03:00
Asia/Macao +08:00 +08:00
Asia/Muscat +04:00 +04:00
Asia/Phnom_Penh +07:00 +07:00
Asia/Rangoon +06:30 +06:30
Asia/Saigon +07:00 +07:00
Asia/Tel_Aviv +02:00 +03:00
Asia/Thimbu +06:00 +06:00
Asia/Ujung_Pandang +08:00 +08:00
Asia/Ulan_Bator +08:00 +08:00
Asia/Vientiane +07:00 +07:00
Atlantic/Faeroe +00:00 +01:00
Atlantic/Jan_Mayen +01:00 +02:00
Atlantic/St_Helena +00:00 +00:00
Australia/Canberra +10:00 +11:00
Australia/Yancowinna +09:30 +10:30
Etc/GMT+0 +00:00 +00:00
Etc/GMT0 +00:00 +00:00
Etc/GMT-0 +00:00 +00:00
Europe/Belfast +00:00 +01:00
Europe/Bratislava +01:00 +02:00
Europe/Busingen +01:00 +02:00
Europe/Guernsey +00:00 +01:00
Europe/Isle_of_Man +00:00 +01:00
Europe/Jersey +00:00 +01:00
Europe/Ljubljana +01:00 +02:00
Europe/Mariehamn +02:00 +03:00
Europe/Podgorica +01:00 +02:00
Europe/San_Marino +01:00 +02:00
Europe/Sarajevo +01:00 +02:00
Europe/Skopje +01:00 +02:00
Europe/Tiraspol +02:00 +03:00
Europe/Vaduz +01:00 +02:00
Europe/Vatican +01:00 +02:00
Europe/Zagreb +01:00 +02:00
GMT +00:00 +00:00
Indian/Antananarivo +03:00 +03:00
Indian/Comoro +03:00 +03:00
Indian/Mayotte +03:00 +03:00
Pacific/Johnston −10:00 −10:00
Pacific/Midway −11:00 −11:00
Pacific/Ponape +11:00 +11:00
Pacific/Saipan +10:00 +10:00
Pacific/Samoa −11:00 −11:00
Pacific/Truk +10:00 +10:00
Pacific/Yap +10:00 +10:00
UTC +00:00 +00:00
Africa/Abidjan +00:00 +00:00
Africa/Accra +00:00 +00:00
Africa/Algiers +01:00 +01:00
Africa/Bissau +00:00 +00:00
Africa/Cairo +02:00 +02:00
Africa/Casablanca +01:00 +01:00
Africa/Ceuta +01:00 +01:00
Africa/El_Aaiun +00:00 +01:00
Africa/Johannesburg +02:00 +02:00
Africa/Juba +03:00 +03:00
Africa/Khartoum +02:00 +02:00
Africa/Lagos +01:00 +01:00
Africa/Maputo +02:00 +02:00
Africa/Monrovia +00:00 +00:00
Africa/Nairobi +03:00 +03:00
Africa/Ndjamena +01:00 +01:00
Africa/Tripoli +02:00 +02:00
Africa/Tunis +01:00 +01:00
Africa/Windhoek +02:00 +02:00
America/Adak −10:00 −09:00
America/Anchorage −09:00 −08:00
America/Araguaina −03:00 −03:00
America/Argentina/Buenos_Aires −03:00 −03:00
America/Argentina/Catamarca −03:00 −03:00
America/Argentina/Cordoba −03:00 −03:00
America/Argentina/Jujuy −03:00 −03:00
America/Argentina/La_Rioja −03:00 −03:00
America/Argentina/Mendoza −03:00 −03:00
America/Argentina/Rio_Gallegos −03:00 −03:00
America/Argentina/Salta −03:00 −03:00
America/Argentina/San_Juan −03:00 −03:00
America/Argentina/San_Luis −03:00 −03:00
America/Argentina/Tucuman −03:00 −03:00
America/Argentina/Ushuaia −03:00 −03:00
America/Asuncion −04:00 −03:00
America/Atikokan −05:00 −05:00
America/Bahia −03:00 −03:00
America/Bahia_Banderas −06:00 −05:00
America/Barbados −04:00 −04:00
America/Belem −03:00 −03:00
America/Belize −06:00 −06:00
America/Blanc-Sablon −04:00 −04:00
America/Boa_Vista −04:00 −04:00
America/Bogota −05:00 −05:00
America/Boise −07:00 −06:00
America/Cambridge_Bay −07:00 −06:00
America/Campo_Grande −04:00 −03:00
America/Cancun −05:00 −05:00
America/Caracas −04:00 −04:00
America/Cayenne −03:00 −03:00
America/Chicago −06:00 −05:00
America/Chihuahua −07:00 −06:00
America/Costa_Rica −06:00 −06:00
America/Creston −07:00 −07:00
America/Cuiaba −04:00 −03:00
America/Curacao −04:00 −04:00
America/Danmarkshavn +00:00 +00:00
America/Dawson −08:00 −07:00
America/Dawson_Creek −07:00 −07:00
America/Denver −07:00 −06:00
America/Detroit −05:00 −04:00
America/Edmonton −07:00 −06:00
America/Eirunepe −05:00 −05:00
America/El_Salvador −06:00 −06:00
America/Fort_Nelson −07:00 −07:00
America/Fortaleza −03:00 −03:00
America/Glace_Bay −04:00 −03:00
America/Godthab −03:00 −02:00
America/Goose_Bay −04:00 −03:00
America/Grand_Turk −05:00 −04:00
America/Guatemala −06:00 −06:00
America/Guayaquil −05:00 −05:00
America/Guyana −04:00 −04:00
America/Halifax −04:00 −03:00
America/Havana −05:00 −04:00
America/Hermosillo −07:00 −07:00
America/Indiana/Indianapolis −05:00 −04:00
America/Indiana/Knox −06:00 −05:00
America/Indiana/Marengo −05:00 −04:00
America/Indiana/Petersburg −05:00 −04:00
America/Indiana/Tell_City −06:00 −05:00
America/Indiana/Vevay −05:00 −04:00
America/Indiana/Vincennes −05:00 −04:00
America/Indiana/Winamac −05:00 −04:00
America/Inuvik −07:00 −06:00
America/Iqaluit −05:00 −04:00
America/Jamaica −05:00 −05:00
America/Juneau −09:00 −08:00
America/Kentucky/Louisville −05:00 −04:00
America/Kentucky/Monticello −05:00 −04:00
America/La_Paz −04:00 −04:00
America/Lima −05:00 −05:00
America/Los_Angeles −08:00 −07:00
America/Maceio −03:00 −03:00
America/Managua −06:00 −06:00
America/Manaus −04:00 −04:00
America/Martinique −04:00 −04:00
America/Matamoros −06:00 −05:00
America/Mazatlan −07:00 −06:00
America/Menominee −06:00 −05:00
America/Merida −06:00 −05:00
America/Metlakatla −09:00 −08:00
America/Mexico_City −06:00 −05:00
America/Miquelon −03:00 −02:00
America/Moncton −04:00 −03:00
America/Monterrey −06:00 −05:00
America/Montevideo −03:00 −03:00
America/Nassau −05:00 −04:00
America/New_York −05:00 −04:00
America/Nipigon −05:00 −04:00
America/Nome −09:00 −08:00
America/Noronha −02:00 −02:00
America/North_Dakota/Beulah −06:00 −05:00
America/North_Dakota/Center −06:00 −05:00
America/North_Dakota/New_Salem −06:00 −05:00
America/Ojinaga −07:00 −06:00
America/Panama −05:00 −05:00
America/Pangnirtung −05:00 −04:00
America/Paramaribo −03:00 −03:00
America/Phoenix −07:00 −07:00
America/Port_of_Spain −04:00 −04:00
America/Port-au-Prince −05:00 −04:00
America/Porto_Velho −04:00 −04:00
America/Puerto_Rico −04:00 −04:00
America/Punta_Arenas −03:00 −03:00
America/Rainy_River −06:00 −05:00
America/Rankin_Inlet −06:00 −05:00
America/Recife −03:00 −03:00
America/Regina −06:00 −06:00
America/Resolute −06:00 −05:00
America/Rio_Branco −05:00 −05:00
America/Santarem −03:00 −03:00
America/Santiago −04:00 −03:00
America/Santo_Domingo −04:00 −04:00
America/Sao_Paulo −03:00 −03:00
America/Scoresbysund −01:00 +00:00
America/Sitka −09:00 −08:00
America/St_Johns −03:30 −02:30
America/Swift_Current −06:00 −06:00
America/Tegucigalpa −06:00 −06:00
America/Thule −04:00 −03:00
America/Thunder_Bay −05:00 −04:00
America/Tijuana −08:00 −07:00
America/Toronto −05:00 −04:00
America/Vancouver −08:00 −07:00
America/Whitehorse −08:00 −07:00
America/Winnipeg −06:00 −05:00
America/Yakutat −09:00 −08:00
America/Yellowknife −07:00 −06:00
Antarctica/Casey +11:00 +11:00
Antarctica/Davis +07:00 +07:00
Antarctica/DumontDUrville +10:00 +10:00
Antarctica/Macquarie +11:00 +11:00
Antarctica/Mawson +05:00 +05:00
Antarctica/Palmer −03:00 −03:00
Antarctica/Rothera −03:00 −03:00
Antarctica/Syowa +03:00 +03:00
Antarctica/Troll +00:00 +02:00
Antarctica/Vostok +06:00 +06:00
Asia/Almaty +06:00 +06:00
Asia/Amman +02:00 +03:00
Asia/Anadyr +12:00 +12:00
Asia/Aqtau +05:00 +05:00
Asia/Aqtobe +05:00 +05:00
Asia/Ashgabat +05:00 +05:00
Asia/Atyrau +05:00 +05:00
Asia/Baghdad +03:00 +03:00
Asia/Baku +04:00 +04:00
Asia/Bangkok +07:00 +07:00
Asia/Barnaul +07:00 +07:00
Asia/Beirut +02:00 +03:00
Asia/Bishkek +06:00 +06:00
Asia/Brunei +08:00 +08:00
Asia/Chita +09:00 +09:00
Asia/Choibalsan +08:00 +08:00
Asia/Colombo +05:30 +05:30
Asia/Damascus +02:00 +03:00
Asia/Dhaka +06:00 +06:00
Asia/Dili +09:00 +09:00
Asia/Dubai +04:00 +04:00
Asia/Dushanbe +05:00 +05:00
Asia/Famagusta +02:00 +02:00
Asia/Gaza +02:00 +03:00
Asia/Hebron +02:00 +03:00
Asia/Ho_Chi_Minh +07:00 +07:00
Asia/Hong_Kong +08:00 +08:00
Asia/Hovd +07:00 +07:00
Asia/Irkutsk +08:00 +08:00
Asia/Jakarta +07:00 +07:00
Asia/Jayapura +09:00 +09:00
Asia/Jerusalem +02:00 +03:00
Asia/Kabul +04:30 +04:30
Asia/Kamchatka +12:00 +12:00
Asia/Karachi +05:00 +05:00
Asia/Kathmandu +05:45 +05:45
Asia/Khandyga +09:00 +09:00
Asia/Kolkata +05:30 +05:30
Asia/Krasnoyarsk +07:00 +07:00
Asia/Kuala_Lumpur +08:00 +08:00
Asia/Kuching +08:00 +08:00
Asia/Macau +08:00 +08:00
Asia/Magadan +11:00 +11:00
Asia/Makassar +08:00 +08:00
Asia/Manila +08:00 +08:00
Asia/Novokuznetsk +07:00 +07:00
Asia/Novosibirsk +07:00 +07:00
Asia/Omsk +06:00 +06:00
Asia/Oral +05:00 +05:00
Asia/Pontianak +07:00 +07:00
Asia/Pyongyang +09:00 +09:00
Asia/Qatar +03:00 +03:00
Asia/Qyzylorda +05:00 +05:00
Asia/Riyadh +03:00 +03:00
Asia/Sakhalin +11:00 +11:00
Asia/Samarkand +05:00 +05:00
Asia/Seoul +09:00 +09:00
Asia/Shanghai +08:00 +08:00
Asia/Singapore +08:00 +08:00
Asia/Srednekolymsk +11:00 +11:00
Asia/Taipei +08:00 +08:00
Asia/Tashkent +05:00 +05:00
Asia/Tbilisi +04:00 +04:00
Asia/Tehran +03:30 +04:30
Asia/Thimphu +06:00 +06:00
Asia/Tokyo +09:00 +09:00
Asia/Tomsk +07:00 +07:00
Asia/Ulaanbaatar +08:00 +08:00
Asia/Urumqi +06:00 +06:00
Asia/Ust-Nera +10:00 +10:00
Asia/Vladivostok +10:00 +10:00
Asia/Yakutsk +09:00 +09:00
Asia/Yangon +06:30 +06:30
Asia/Yekaterinburg +05:00 +05:00
Asia/Yerevan +04:00 +04:00
Atlantic/Azores −01:00 +00:00
Atlantic/Bermuda −04:00 −03:00
Atlantic/Canary +00:00 +01:00
Atlantic/Cape_Verde −01:00 −01:00
Atlantic/Faroe +00:00 +01:00
Atlantic/Madeira +00:00 +01:00
Atlantic/Reykjavik +00:00 +00:00
Atlantic/South_Georgia −02:00 −02:00
Atlantic/Stanley −03:00 −03:00
Australia/Adelaide +09:30 +10:30
Australia/Brisbane +10:00 +10:00
Australia/Broken_Hill +09:30 +10:30
Australia/Currie +10:00 +11:00
Australia/Darwin +09:30 +09:30
Australia/Eucla +08:45 +08:45
Australia/Hobart +10:00 +11:00
Australia/Lindeman +10:00 +10:00
Australia/Lord_Howe +10:30 +11:00
Australia/Melbourne +10:00 +11:00
Australia/Perth +08:00 +08:00
Australia/Sydney +10:00 +11:00
Etc/GMT +00:00 +00:00
Etc/GMT+1 −01:00 −01:00
Etc/GMT+10 −10:00 −10:00
Etc/GMT+11 −11:00 −11:00
Etc/GMT+12 −12:00 −12:00
Etc/GMT+2 −02:00 −02:00
Etc/GMT+3 −03:00 −03:00
Etc/GMT+4 −04:00 −04:00
Etc/GMT+5 −05:00 −05:00
Etc/GMT+6 −06:00 −06:00
Etc/GMT+7 −07:00 −07:00
Etc/GMT+8 −08:00 −08:00
Etc/GMT+9 −09:00 −09:00
Etc/GMT-1 +01:00 +01:00
Etc/GMT-10 +10:00 +10:00
Etc/GMT-11 +11:00 +11:00
Etc/GMT-12 +12:00 +12:00
Etc/GMT-13 +13:00 +13:00
Etc/GMT-14 +14:00 +14:00
Etc/GMT-2 +02:00 +02:00
Etc/GMT-3 +03:00 +03:00
Etc/GMT-4 +04:00 +04:00
Etc/GMT-5 +05:00 +05:00
Etc/GMT-6 +06:00 +06:00
Etc/GMT-7 +07:00 +07:00
Etc/GMT-8 +08:00 +08:00
Etc/GMT-9 +09:00 +09:00
Etc/UTC +00:00 +00:00
Europe/Amsterdam +01:00 +02:00
Europe/Andorra +01:00 +02:00
Europe/Astrakhan +04:00 +04:00
Europe/Athens +02:00 +03:00
Europe/Belgrade +01:00 +02:00
Europe/Sarajevo +01:00 +02:00
Europe/Berlin +01:00 +02:00
Europe/Brussels +01:00 +02:00
Europe/Bucharest +02:00 +03:00
Europe/Budapest +01:00 +02:00
Europe/Chisinau +02:00 +03:00
Europe/Copenhagen +01:00 +02:00
Europe/Dublin +00:00 +01:00
Europe/Gibraltar +01:00 +02:00
Europe/Helsinki +02:00 +03:00
Europe/Istanbul +03:00 +03:00
Europe/Kaliningrad +02:00 +02:00
Europe/Kiev +02:00 +03:00
Europe/Kirov +03:00 +03:00
Europe/Lisbon +00:00 +01:00
Europe/London +00:00 +01:00
Europe/Luxembourg +01:00 +02:00
Europe/Madrid +01:00 +02:00
Europe/Malta +01:00 +02:00
Europe/Minsk +03:00 +03:00
Europe/Monaco +01:00 +02:00
Europe/Moscow +03:00 +03:00
Asia/Nicosia +02:00 +03:00
Europe/Oslo +01:00 +02:00
Europe/Paris +01:00 +02:00
Europe/Prague +01:00 +02:00
Europe/Riga +02:00 +03:00
Europe/Rome +01:00 +02:00
Europe/Samara +04:00 +04:00
Europe/Saratov +04:00 +04:00
Europe/Simferopol +03:00 +03:00
Europe/Sofia +02:00 +03:00
Europe/Stockholm +01:00 +02:00
Europe/Tallinn +02:00 +03:00
Europe/Tirane +01:00 +02:00
Europe/Ulyanovsk +04:00 +04:00
Europe/Uzhgorod +02:00 +03:00
Europe/Vienna +01:00 +02:00
Europe/Vilnius +02:00 +03:00
Europe/Volgograd +04:00 +04:00
Europe/Warsaw +01:00 +02:00
Europe/Zaporozhye +02:00 +03:00
Europe/Zurich +01:00 +02:00
Indian/Chagos +06:00 +06:00
Indian/Christmas +07:00 +07:00
Indian/Cocos +06:30 +06:30
Indian/Kerguelen +05:00 +05:00
Indian/Mahe +04:00 +04:00
Indian/Maldives +05:00 +05:00
Indian/Mauritius +04:00 +04:00
Indian/Reunion +04:00 +04:00
Pacific/Apia +13:00 +14:00
Pacific/Auckland +12:00 +13:00
Pacific/Bougainville +11:00 +11:00
Pacific/Chatham +12:45 +13:45
Pacific/Chuuk +10:00 +10:00
Pacific/Easter −06:00 −05:00
Pacific/Efate +11:00 +11:00
Pacific/Enderbury +13:00 +13:00
Pacific/Fakaofo +13:00 +13:00
Pacific/Fiji +12:00 +13:00
Pacific/Funafuti +12:00 +12:00
Pacific/Galapagos −06:00 −06:00
Pacific/Gambier −09:00 −09:00
Pacific/Guadalcanal +11:00 +11:00
Pacific/Guam +10:00 +10:00
Pacific/Honolulu −10:00 −10:00
Pacific/Kiritimati +14:00 +14:00
Pacific/Kosrae +11:00 +11:00
Pacific/Kwajalein +12:00 +12:00
Pacific/Majuro +12:00 +12:00
Pacific/Marquesas −09:30 −09:30
Pacific/Nauru +12:00 +12:00
Pacific/Niue −11:00 −11:00
Pacific/Norfolk +11:00 +11:00
Pacific/Noumea +11:00 +11:00
Pacific/Pago_Pago −11:00 −11:00
Pacific/Palau +09:00 +09:00
Pacific/Pitcairn −08:00 −08:00
Pacific/Pohnpei +11:00 +11:00
Pacific/Port_Moresby +10:00 +10:00
Pacific/Rarotonga −10:00 −10:00
Pacific/Tahiti −10:00 −10:00
Pacific/Tarawa +12:00 +12:00
Pacific/Tongatapu +13:00 +14:00
Pacific/Wake +12:00 +12:00
Pacific/Wallis +12:00 +12:00
Australia/ACT +10:00 +11:00
Australia/LHI +10:30 +11:00
Australia/North +09:30 +09:30
Australia/NSW +10:00 +11:00
Australia/Queensland +10:00 +10:00
Australia/South +09:30 +10:30
Australia/Tasmania +10:00 +11:00
Australia/Victoria +10:00 +11:00
Australia/West +08:00 +08:00
Brazil/Acre −05:00 −05:00
Brazil/DeNoronha −02:00 −02:00
Brazil/East −03:00 −02:00
Brazil/West −04:00 −04:00
Canada/Atlantic −04:00 −03:00
Canada/Central −06:00 −05:00
Canada/Eastern −05:00 −04:00
Canada/Mountain −07:00 −06:00
Canada/Newfoundland −03:30 −02:30
Canada/Pacific −08:00 −07:00
Canada/Saskatchewan −06:00 −06:00
Canada/Yukon −08:00 −07:00
CET +01:00 +02:00
Chile/Continental −04:00 −03:00
Chile/EasterIsland −06:00 −05:00
CST6CDT −06:00 −05:00
Cuba −05:00 −04:00
EET +02:00 +03:00
Egypt +02:00 +02:00
Eire +00:00 +01:00
EST −05:00 −05:00
EST5EDT −05:00 −04:00
Etc/Greenwich +00:00 +00:00
Etc/UCT +00:00 +00:00
Etc/Universal +00:00 +00:00
Etc/Zulu +00:00 +00:00
GB +00:00 +01:00
GB-Eire +00:00 +01:00
GMT+0 +00:00 +00:00
GMT0 +00:00 +00:00
GMT-0 +00:00 +00:00
Greenwich +00:00 +00:00
Hongkong +08:00 +08:00
HST −10:00 −10:00
Iceland +00:00 +00:00
Iran +03:30 +04:30
Israel +02:00 +03:00
Jamaica −05:00 −05:00
Japan +09:00 +09:00
Kwajalein +12:00 +12:00
Libya +02:00 +02:00
MET +01:00 +02:00
Mexico/BajaNorte −08:00 −07:00
Mexico/BajaSur −07:00 −06:00
Mexico/General −06:00 −05:00
MST −07:00 −07:00
MST7MDT −07:00 −06:00
Navajo −07:00 −06:00
NZ +12:00 +13:00
NZ-CHAT +12:45 +13:45
Poland +01:00 +02:00
Portugal +00:00 +01:00
PRC +08:00 +08:00
PST8PDT −08:00 −07:00
ROC +08:00 +08:00
ROK +09:00 +09:00
Singapore +08:00 +08:00
Turkey +03:00 +03:00
UCT +00:00 +00:00
Universal +00:00 +00:00
US/Alaska −09:00 −08:00
US/Aleutian −10:00 −09:00
US/Arizona −07:00 −07:00
US/Central −06:00 −05:00
US/Eastern −05:00 −04:00
US/East-Indiana −05:00 −04:00
US/Hawaii −10:00 −10:00
US/Indiana-Starke −06:00 −05:00
US/Michigan −05:00 −04:00
US/Mountain −07:00 −06:00
US/Pacific −08:00 −07:00
US/Pacific-New −08:00 −07:00
US/Samoa −11:00 −11:00
WET +00:00 +01:00
W-SU +03:00 +03:00
Zulu +00:00 +00:00

Time Zone Abbreviations

Abbreviation Time Zone Offset
ACDT Australian Central Daylight Saving Time UTC+10:30
ACST Australian Central Standard Time UTC+09:30
ACT Acre Time UTC−05
ACT ASEAN Common Time UTC+06:30 – UTC+09
ACWST Australian Central Western Standard Time UTC+08:45
ADT Atlantic Daylight Time UTC−03
AEDT Australian Eastern Daylight Saving Time UTC+11
AEST Australian Eastern Standard Time UTC+10
AET Australian Eastern Time UTC+10/UTC+11
AFT Afghanistan Time UTC+04:30
AKDT Alaska Daylight Time UTC−08
AKST Alaska Standard Time UTC−09
ALMT Alma-Ata Time UTC+06
AMST Amazon Summer Time (Brazil) UTC−03
AMT Amazon Time (Brazil) UTC−04
AMT Armenia Time UTC+04
ANAT Anadyr Time UTC+12
AQTT Aqtobe Time UTC+05
ART Argentina Time UTC−03
AST Arabia Standard Time UTC+03
AST Atlantic Standard Time UTC−04
AWST Australian Western Standard Time UTC+08
AZOST Azores Summer Time UTC±00
AZOT Azores Standard Time UTC−01
AZT Azerbaijan Time UTC+04
BDT Brunei Time UTC+08
BIOT British Indian Ocean Time UTC+06
BIT Baker Island Time UTC−12
BOT Bolivia Time UTC−04
BRST Brasília Summer Time UTC−02
BRT Brasília Time UTC−03
BST Bangladesh Standard Time UTC+06
BST Bougainville Standard Time UTC+11
BST British Summer Time (British Standard Time from Feb 1968 to Oct 1971) UTC+01
BTT Bhutan Time UTC+06
CAT Central Africa Time UTC+02
CCT Cocos Islands Time UTC+06:30
CDT Central Daylight Time (North America) UTC−05
CDT Cuba Daylight Time UTC−04
CEST Central European Summer Time (Cf. HAEC) UTC+02
CET Central European Time UTC+01
CHADT Chatham Daylight Time UTC+13:45
CHAST Chatham Standard Time UTC+12:45
CHOT Choibalsan Standard Time UTC+08
CHOST Choibalsan Summer Time UTC+09
CHST Chamorro Standard Time UTC+10
CHUT Chuuk Time UTC+10
CIST Clipperton Island Standard Time UTC−08
WITA Central Indonesia Time UTC+08
CKT Cook Island Time UTC−10
CLST Chile Summer Time UTC−03
CLT Chile Standard Time UTC−04
COST Colombia Summer Time UTC−04
COT Colombia Time UTC−05
CST Central Standard Time (North America) UTC−06
CST China Standard Time UTC+08
CST Cuba Standard Time UTC−05
CT Central Time UTC−06/UTC−05
CVT Cape Verde Time UTC−01
CWST Central Western Standard Time (Australia) unofficial UTC+08:45
CXT Christmas Island Time UTC+07
DAVT Davis Time UTC+07
DDUT Dumont d'Urville Time UTC+10
DFT AIX-specific equivalent of Central European Time[NB 1] UTC+01
EASST Easter Island Summer Time UTC−05
EAST Easter Island Standard Time UTC−06
EAT East Africa Time UTC+03
ECT Eastern Caribbean Time (does not recognise DST) UTC−04
ECT Ecuador Time UTC−05
EDT Eastern Daylight Time (North America) UTC−04
EEST Eastern European Summer Time UTC+03
EET Eastern European Time UTC+02
EGST Eastern Greenland Summer Time UTC±00
EGT Eastern Greenland Time UTC−01
WIT Eastern Indonesian Time UTC+09
EST Eastern Standard Time (North America) UTC−05
FET Further-eastern European Time UTC+03
FJT Fiji Time UTC+12
FKST Falkland Islands Summer Time UTC−03
FKT Falkland Islands Time UTC−04
FNT Fernando de Noronha Time UTC−02
GALT Galápagos Time UTC−06
GAMT Gambier Islands Time UTC−09
GET Georgia Standard Time UTC+04
GFT French Guiana Time UTC−03
GILT Gilbert Island Time UTC+12
GIT Gambier Island Time UTC−09
GMT Greenwich Mean Time UTC±00
GST South Georgia and the South Sandwich Islands Time UTC−02
GST Gulf Standard Time UTC+04
GYT Guyana Time UTC−04
HDT Hawaii–Aleutian Daylight Time UTC−09
HAEC Heure Avancée d'Europe Centrale French-language name for CEST UTC+02
HST Hawaii–Aleutian Standard Time UTC−10
HKT Hong Kong Time UTC+08
HMT Heard and McDonald Islands Time UTC+05
HOVST Hovd Summer Time (not used from 2017-present) UTC+08
HOVT Hovd Time UTC+07
ICT Indochina Time UTC+07
IDLW International Day Line West time zone UTC−12
IDT Israel Daylight Time UTC+03
IOT Indian Ocean Time UTC+03
IRDT Iran Daylight Time UTC+04:30
IRKT Irkutsk Time UTC+08
IRST Iran Standard Time UTC+03:30
IST Indian Standard Time UTC+05:30
IST Irish Standard Time UTC+01
IST Israel Standard Time UTC+02
JST Japan Standard Time UTC+09
KALT Kaliningrad Time UTC+02
KGT Kyrgyzstan Time UTC+06
KOST Kosrae Time UTC+11
KRAT Krasnoyarsk Time UTC+07
KST Korea Standard Time UTC+09
LHST Lord Howe Standard Time UTC+10:30
LHST Lord Howe Summer Time UTC+11
LINT Line Islands Time UTC+14
MAGT Magadan Time UTC+12
MART Marquesas Islands Time UTC−09:30
MAWT Mawson Station Time UTC+05
MDT Mountain Daylight Time (North America) UTC−06
MET Middle European Time Same zone as CET UTC+01
MEST Middle European Summer Time Same zone as CEST UTC+02
MHT Marshall Islands Time UTC+12
MIST Macquarie Island Station Time UTC+11
MIT Marquesas Islands Time UTC−09:30
MMT Myanmar Standard Time UTC+06:30
MSK Moscow Time UTC+03
MST Malaysia Standard Time UTC+08
MST Mountain Standard Time (North America) UTC−07
MUT Mauritius Time UTC+04
MVT Maldives Time UTC+05
MYT Malaysia Time UTC+08
NCT New Caledonia Time UTC+11
NDT Newfoundland Daylight Time UTC−02:30
NFT Norfolk Island Time UTC+11
NOVT Novosibirsk Time UTC+07
NPT Nepal Time UTC+05:45
NST Newfoundland Standard Time UTC−03:30
NT Newfoundland Time UTC−03:30
NUT Niue Time UTC−11
NZDT New Zealand Daylight Time UTC+13
NZST New Zealand Standard Time UTC+12
OMST Omsk Time UTC+06
ORAT Oral Time UTC+05
PDT Pacific Daylight Time (North America) UTC−07
PET Peru Time UTC−05
PETT Kamchatka Time UTC+12
PGT Papua New Guinea Time UTC+10
PHOT Phoenix Island Time UTC+13
PHT Philippine Time UTC+08
PKT Pakistan Standard Time UTC+05
PMDT Saint Pierre and Miquelon Daylight Time UTC−02
PMST Saint Pierre and Miquelon Standard Time UTC−03
PONT Pohnpei Standard Time UTC+11
PST Pacific Standard Time (North America) UTC−08
PST Philippine Standard Time UTC+08
PYST Paraguay Summer Time UTC−03
PYT Paraguay Time UTC−04
RET Réunion Time UTC+04
ROTT Rothera Research Station Time UTC−03
SAKT Sakhalin Island Time UTC+11
SAMT Samara Time UTC+04
SAST South African Standard Time UTC+02
SBT Solomon Islands Time UTC+11
SCT Seychelles Time UTC+04
SDT Samoa Daylight Time UTC−10
SGT Singapore Time UTC+08
SLST Sri Lanka Standard Time UTC+05:30
SRET Srednekolymsk Time UTC+11
SRT Suriname Time UTC−03
SST Samoa Standard Time UTC−11
SST Singapore Standard Time UTC+08
SYOT Showa Station Time UTC+03
TAHT Tahiti Time UTC−10
THA Thailand Standard Time UTC+07
TFT French Southern and Antarctic Time UTC+05
TJT Tajikistan Time UTC+05
TKT Tokelau Time UTC+13
TLT Timor Leste Time UTC+09
TMT Turkmenistan Time UTC+05
TRT Turkey Time UTC+03
TOT Tonga Time UTC+13
TVT Tuvalu Time UTC+12
ULAST Ulaanbaatar Summer Time UTC+09
ULAT Ulaanbaatar Standard Time UTC+08
UTC Coordinated Universal Time UTC±00
UYST Uruguay Summer Time UTC−02
UYT Uruguay Standard Time UTC−03
UZT Uzbekistan Time UTC+05
VET Venezuelan Standard Time UTC−04
VLAT Vladivostok Time UTC+10
VOLT Volgograd Time UTC+04
VOST Vostok Station Time UTC+06
VUT Vanuatu Time UTC+11
WAKT Wake Island Time UTC+12
WAST West Africa Summer Time UTC+02
WAT West Africa Time UTC+01
WEST Western European Summer Time UTC+01
WET Western European Time UTC±00
WIB Western Indonesian Time UTC+07
WGST West Greenland Summer Time UTC−02
WGT West Greenland Time UTC−03
WST Western Standard Time UTC+08
YAKT Yakutsk Time UTC+09
YEKT Yekaterinburg Time UTC+05
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