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Time Zones

The following list (adapted from the article listed on Wikipedia) is intended to provide some help to those people in time zones other than GMT to be able to know when the scheduled chat times are.

This is a list of time zones, sorted by time offset from Coordinated Universal Time (UTC). Countries and regions observing the respective time zone s are listed under it. This only gives current offsets.

Regions marked with asterisks (* or **) observe daylight saving time : add one hour in summer (* for Northern Hemisphere summer; ** for Southern Hemisphere ). Note, some locations use GMT ( Greenwich Mean Time ) instead of UTC (Coordinated Universal Time) in the definition of local time. For the purposes of this summary, the distinction is ignored.

Some zones north-south of each other in the mid Pacific differ by 24 hours in time: they have the same time of the day but differ by a full day. The two extreme time zones on Earth (both in the mid Pacific) differ by 26 hours. A particular day starts earlier in countries with a more positive UTC offset. Thus the first occurrence of a date will be in UTC+14 and the last of the same date in UTC-12 . This gives the interesting feature that during one hour each day there are three different dates in use on land around the world, at 10:30 UTC Monday it is already 00:30 Tuesday in the Line Islands (UTC+14) while the time is 23:30 Sunday in Samoa ( UTC-11 ) .

Time zone abbreviations are almost always customary, not legal—those listed here only exist in English and are somewhat arbitrary. English time zone names below generally only apply to English-speaking areas. The CIA and HM Nautical Almanac Office – NAO – disagree on the time kept by some Russian oblasts , so both are given below—this may be due to a recent time zone change.

UTC − 12, Y

  • Baker Island
  • Howland Island
  • Ships at sea within 7.5° east of 180°.

For Kwajalein , Eniwetok , and Bikini atolls, see note at UTC + 12, M .

UTC − 11, X

  • American Samoa
  • Jarvis Island
  • Kingman Reef
  • Midway Atoll
  • Niue
  • Palmyra Atoll
  • Samoa

UTC − 10, W

  • Cook Islands
  • French Polynesia
    • Society Archipelago including Tahiti ,
    • Tuamotu Archipelago , and
    • Tubuai Islands
  • Johnston Atoll
  • Tokelau
  • United States (HST—Hawaii-Aleutian Standard Time )
    • Alaska
      • Aleutian Islands (west of 169° 30′ West)*
    • Hawaii (including Kure Atoll , Pearl and Hermes Reef , and the rest of the uninhabited Northwestern Hawaiian Islands , but excluding Midway Atoll)

UTC − 9:30, V*

  • French Polynesia
    • Marquesas Islands

UTC − 9, V

  • French Polynesia
    • Gambier Islands
  • United States (AKST—Alaska Standard Time )
    • Alaska (most of state)*

UTC − 8, U

  • Canada (PST -Pacific Standard Time ; the corresponding daylight saving time is called Pacific Daylight Time – PDT, UTC − 7)
    • British Columbia (most of province)*,
    • Northwest Territories *, (rest of territory is on Mountain Standard Time)
      • Tungsten, Northwest Territories and the associated Cantung Mine (no DST)
    • Yukon *
  • Clipperton Island
  • Mexico
    • Baja California *
  • Pitcairn Islands
  • United States (PST—Pacific Standard Time)
    • California *
    • Idaho *
      • north of the Salmon River (between the Oregon state border and the Idaho County / Lemhi County border), and
      • west of the Idaho County/Lemhi County border (between the Salmon River and the Montana state border)
    • Nevada (most of state, except Idaho border towns and West Wendover )*
    • Oregon (most of state, including southern 1/5 of Malheur County )*
    • Washington *

UTC − 7, T

  • Canada (MST—Mountain Standard Time )
    • Alberta *,
    • British Columbia
      • northeastern (no DST)
        • Most of Peace River Regional District except Fort Ware , Beatton River , Mountain , Sikanni Chief , Buckinghorse River and Trutch
      • southeastern*
        • Regional District of East Kootenay ,
        • Regional District of Central Kootenay east of the Kootenay River and parts east of Kootenay Lake that are south of and including Riondel (Creston doesn’t observe DST), and
        • Columbia-Shuswap Regional District east of the Selkirk Mountains ,
    • Northwest Territories *, except for Tungsten, Northwest Territories and the associated Cantung Mine (no DST)
    • Nunavut *, (rest of territory is on Central Time and Eastern Time)
      • Kitikmeot Region *
    • Saskatchewan
      • Lloydminster and surrounding area* (specifically exempted from the legal prohibition of DST in Saskatchewan)
  • Mexico
    • Baja California Sur *,
    • Chihuahua * (adopted UTC−7 in 1998),
    • Nayarit *
    • Sinaloa *,
    • Sonora
  • United States (MST—Mountain Standard Time)
    • Arizona (the Navajo Nation * does observe DST, but the Hopi Reservation , an enclave within it, does not observe DST),
    • Colorado *,
    • Idaho *
      • south of the Salmon River (between the Oregon state border and the Idaho County / Lemhi County border), and
      • east of the Idaho County/Lemhi County border (between the Salmon River and the Montana state border),
    • Kansas *
      • Greeley County,
      • Hamilton County,
      • Sherman County, and
      • Wallace County,
    • Montana *,
    • Nebraska (western)*,
    • Nevada *
      • Duck Valley Indian Reservation, plus the towns of Mountain City and Owyhee ,
      • Jackpot , and
      • West Wendover ,
    • New Mexico *,
    • North Dakota (southwestern)*,
    • Oklahoma
      • Kenton*,
    • Oregon
      • northern 4/5 of Malheur County *,
    • South Dakota (western)*,
    • Texas *
      • El Paso County ,
      • Hudspeth County, and
      • Culberson County (Guadalupe Mountains National Park area),
    • Utah *,
    • Wyoming *

UTC − 6, S

  • Belize
  • Canada (CST—Central Standard Time )
    • Manitoba *,
    • Nunavut *, (rest of territory is on Mountain Time and Eastern Time)
      • Kivalliq Region *, (except Southampton Island (Coral Harbour ) which is on Eastern Time and does not observe DST)
    • Ontario *
      • Northwestern Ontario west of 90° West (except Atikokan area, New Osnaburgh and Pickle Lake area, and Shebandowan and Upsala area), and Big Trout Lake area east of 90° West,
    • Saskatchewan (except Lloydminster and surrounding area)
      • Creighton and Denare Beach area does observe DST (unofficially, as Saskatchewan has a law prohibiting the use of DST)
  • Chile
    • Easter Island **
  • Costa Rica
  • Ecuador
    • Galápagos Islands
  • El Salvador
  • Guatemala * (observes DST since 2006)
  • Honduras
  • Mexico
    • Aguascalientes *
    • Campeche *
    • Coahuila *
    • Colima *
    • Chiapas *
    • Distrito Federal *
    • Durango *
    • Guanajuato *
    • Guerrero *
    • Hidalgo *
    • Jalisco *
    • State of México *
    • Michoacán *
    • Morelos *
    • Nuevo León *
    • Oaxaca *
    • Puebla *
    • Querétaro *
    • Quintana Roo *
    • San Luis Potosí *
    • Tabasco *
    • Tamaulipas *
    • Tlaxcala *
    • Veracruz *
    • Yucatán *
    • Zacatecas *
  • Nicaragua
  • United States (CST—Central Standard Time)
    • Alabama (most of state)*,
    • Arkansas *,
    • Florida
      • west of the Apalachicola River , except for the portions of Franklin County and County south of the Intracoastal Waterway *,
    • Illinois *,
    • Indiana *
      • northwestern
        • Jasper County ,
        • Lake County ,
        • LaPorte County ,
        • Newton County ,
        • Porter County ,
        • Pulaski County , and
        • Starke County ,
      • southwestern
        • Daviess County ,
        • Dubois County ,
        • Gibson County ,
        • Knox County ,
        • Martin County ,
        • Perry County ,
        • Pike County ,
        • Posey County ,
        • Spencer County ,
        • Vanderburgh County , and
        • Warrick County ,
    • Iowa *,
    • Kansas (most of state)*,
    • Kentucky (western)*,
    • Louisiana *,
    • Michigan *
      • Dickinson County ,
      • Gogebic County ,
      • Iron County , and
      • Menominee County ,
    • Minnesota *,
    • Mississippi *,
    • Missouri *,
    • Nebraska (central and eastern)*,
    • North Dakota (most of state)*,
    • Oklahoma (most of state)*,
    • South Dakota (eastern)*,
    • Tennessee *
      • Middle Tennessee ,
      • West Tennessee ,
      • Bledsoe County ,
      • Cumberland County ,
      • Marion County , and
      • Sequatchie County
    • Texas (most of state)*,
    • Wisconsin *

UTC − 5, R

  • Bahamas *
  • Brazil
    • Acre ,
    • Amazonas (southwestern)
  • Canada (EST—Eastern Standard Time )
    • Nunavut *, (rest of territory is on Mountain Time and Central Time)
      • Qikiqtaaluk Region *, (except Resolute which is on Central Time)
    • Ontario
      • east of 90° West (except Big Trout Lake area)*, plus
      • Atikokan area (no DST),
      • New Osnaburgh and Pickle Lake area (no DST), and
      • Shebandowan and Upsala area* west of 90° West,
      • GTA ; Ottawa .
    • Quebec (most of province)*
  • Cayman Islands
  • Colombia
  • Cuba *
  • Ecuador
  • Haiti *
  • Jamaica
  • Navassa Island
  • Panama
  • Peru
  • Turks and Caicos Islands *
  • United States (EST—Eastern Standard Time)
    • Alabama
      • Phoenix City *,
    • Connecticut *,
    • Delaware *,
    • District of Columbia *,
    • Florida
      • east of the Apalachicola River , plus the portions of Franklin County and County south of the Intracoastal Waterway , west of the Apalachicola River*,
    • Georgia *,
    • Indiana (most of state)*,
    • Kentucky (eastern)*,
    • Maine *,
    • Maryland *,
    • Massachusetts *,
    • Michigan (most of state)*,
    • New Hampshire *,
    • New Jersey *,
    • New York *,
    • North Carolina *,
    • Ohio *,
    • Pennsylvania *,
    • Rhode Island *,
    • South Carolina *,
    • Tennessee *
      • East Tennessee , except Bledsoe , Cumberland , Marion , and Sequatchie County, Sequatchie Counties
    • Vermont *,
    • Virginia *,
    • West Virginia *

UTC − 4, Q

  • Anguilla
  • Antigua and Barbuda
  • Aruba
  • Barbados
  • Bermuda *
  • Bolivia
  • Brazil
    • Amazonas (all but southwestern tip),
    • Mato Grosso **,
    • Mato Grosso do Sul **,
    • Pará (western) ,
    • Rondônia ,
    • Roraima
  • Canada (AST— Atlantic Standard Time )
    • Labrador (all but southeastern tip)*,
    • New Brunswick *,
    • Nova Scotia *,
    • Prince Edward Island *,
    • Quebec (east of the Natashquan River) (NAO)
    • Quebec (east of the 63°W longitude) (CIA)
  • Chile **
  • Dominica
  • Dominican Republic
  • Falkland Islands **
  • Greenland
    • northwestern
      • Pituffik area* (observes United States DST rules)
  • Grenada
  • Guadeloupe
  • Guyana
  • Martinique
  • Montserrat
  • Netherlands Antilles
  • Paraguay **
  • Puerto Rico (AST—Atlantic Standard Time)
  • Saint Kitts and Nevis
  • Saint Lucia
  • Saint Vincent and the Grenadines
  • Trinidad and Tobago
  • Venezuela
  • Virgin Islands
    • British Virgin Islands and
    • U.S. Virgin Islands (AST—Atlantic Standard Time)

UTC − 3:30, P*

  • Canada (NST—Newfoundland Standard Time )
    • Labrador (southeastern)*,
    • Newfoundland *

UTC − 3, P

  • Argentina
  • Brazil – official time
    • Alagoas ,
    • Amapá ,
    • Bahia (no DST since 2003),
    • Ceará ,
    • Distrito Federal **,
    • Espírito Santo **,
    • Goiás **,
    • Maranhão ,
    • Minas Gerais **,
    • Pará (eastern) ,
    • Paraíba ,
    • Paraná **,
    • Pernambuco ,
    • Piauí ,
    • Rio de Janeiro **,
    • Rio Grande do Norte ,
    • Rio Grande do Sul **,
    • Santa Catarina **,
    • São Paulo **,
    • Sergipe ,
    • Tocantins
  • French Guiana
  • Greenland
    • south coast and southwest coast* (observes European Union DST rules )
  • Saint-Pierre and Miquelon *
  • Suriname
  • Uruguay **

UTC − 2, O

  • Brazil – Ocean Islands
    • Fernando de Noronha , Trindade and Martim Vaz , etc.
  • South Georgia and the South Sandwich Islands

UTC − 1, N

  • Cape Verde
  • Greenland
    • eastern
      • Ittoqqortoormiit and surrounding area* (observes European Union DST rules )
  • Portugal
    • Azores *

UTC, Z

  • Burkina Faso
  • Bouvet Island
  • Côte d’Ivoire
  • Faroe Islands *
  • The Gambia
  • Ghana
  • Greenland
    • northeastern
      • Danmarkshavn and surrounding area
  • Guernsey *
  • Guinea
  • Guinea-Bissau
  • Iceland
  • Ireland *
  • Isle of Man *
  • Jersey *
  • Liberia
  • Mali
  • Mauritania
  • Morocco
  • Portugal *
  • Saint Helena (including Ascension Island and Tristan da Cunha )
  • São Tomé and Príncipe
  • Senegal
  • Sierra Leone
  • Spain
    • Canary Islands * (observes European Union DST rules )
  • Togo
  • United Kingdom * (GMT / BST)
  • Western Sahara

UTC + 1, A

See UTC1 for the names of time zones

  • Albania *
  • Algeria
  • Andorra *
  • Angola
  • Austria *
  • Belgium *
  • Benin
  • Bosnia and Herzegovina *
  • Cameroon
  • Central African Republic
  • Chad
  • Congo, Republic of the
  • Congo, Democratic Republic of the
    • Kinshasa
    • Bandundu
    • Bas-Congo
    • Equateur
  • Croatia *
  • Czech Republic *
  • Denmark *
  • Equatorial Guinea
  • France *
  • Gabon
  • Germany *
  • Gibraltar *
  • Hungary *
  • Italy *
  • Liechtenstein *
  • Luxembourg *
  • Macedonia, Republic of *
  • Malta *
  • Monaco *
  • Montenegro *
  • Namibia **
  • Netherlands *
  • Niger
  • Nigeria
  • Norway *
  • Poland *
  • San Marino *
  • Serbia *
  • Slovakia *
  • Slovenia *
  • Spain * (except Canary Islands ).
  • Svalbard and Jan Mayen *
  • Sweden *
  • Switzerland *
  • Tunisia *
  • Vatican City *

UTC + 2, B

  • Belarus *
  • Botswana
  • Bulgaria *
  • Burundi
  • Congo, Democratic Republic of the
    • Kasai-Occidental
    • Kasai-Oriental
    • Katanga
    • Maniema
    • Nord-Kivu
    • Orientale
    • Sud-Kivu
  • Cyprus *
  • Egypt *
  • Estonia *
  • Finland *
  • Gaza Strip *
  • Greece *
  • Israel *
  • Jordan *
  • Latvia *
  • Lebanon *
  • Lesotho
  • Libya
  • Lithuania *
  • Malawi
  • Moldova *
  • Mozambique
  • Romania *
  • Russia ( Kaliningrad Oblast )*
  • Rwanda
  • South Africa
  • Swaziland
  • Syria *
  • Turkey *
  • Ukraine *
  • West Bank *
  • Zambia
  • Zimbabwe

UTC + 3, C

  • Bahrain
  • Comoros
  • Djibouti
  • Eritrea
  • Ethiopia
  • Iraq *
  • Kenya
  • Kuwait
  • Madagascar
  • Mayotte
  • Qatar
  • Russia * (most of European portion, including Moscow , Saint Petersburg, Rostov-on-Don , Novaya Zemlya , Franz Josef Land , and all railroads throughout Russia)
    • Astrakhan Oblast * (NAO)
    • Saratov Oblast * (NAO)
    • Ulyanovsk Oblast * (NAO)
    • Volgograd Oblast * (NAO)
  • Saudi Arabia
  • Scattered islands in the Indian Ocean
    • Bassas da India
    • Europa Island
    • Juan de Nova Island
  • Somalia
  • Sudan
  • Tanzania
  • Uganda
  • Yemen

UTC + 3:30, C*

  • Iran

UTC + 4, D

  • Armenia *
  • Azerbaijan *
  • French Southern Territories
    • Îles Crozet
  • Georgia – Georgia moved from zone UTC+4 to UTC+3 on June 27 2004 , then back to UTC+4 on March 27 2005 )
  • Mauritius
  • Oman
  • Réunion
  • Russia
    • Samara Oblast *
    • Udmurt Republic *
  • Scattered islands in the Indian Ocean
    • Glorioso Islands (technically in UTC+3 but follows the same time zone as Réunion)
    • Tromelin Island
  • Seychelles
  • United Arab Emirates

UTC + 4:30, D*

  • Afghanistan

UTC + 5, E

  • British Indian Ocean Territory (NAO)
  • French Southern Territories
    • Île Amsterdam
    • Île Saint-Paul
    • Îles Kerguelen
  • Heard Island and McDonald Islands
  • Kazakhstan (Western)
  • Maldives
  • Pakistan (PST— Pakistan Standard Time )
    • Islamabad
    • Karachi
    • Lahore
  • Russia
    • Astrakhan Oblast * (CIA)
    • Republic of Bashkortostan *
    • Chelyabinsk Oblast *
    • Kurgan Oblast *
    • Orenburg Oblast *
    • Perm Krai *
    • Saratov Oblast * (CIA)
    • Sverdlovsk Oblast * (incl. Yekaterinburg )
    • Tyumen Oblast *
    • Ulyanovsk Oblast * (CIA)
    • Volgograd Oblast * (CIA)
  • Tajikistan
  • Turkmenistan
  • Uzbekistan

UTC + 5:30, E*

  • India (IST—Indian Standard Time)
  • Sri Lanka ([1] Sri Lanka moved from zone UTC+6 to UTC+5:30 on April 15 , 2006 )

UTC + 5:45, E‡

  • Nepal

Nepal’s time zone of UTC+5:45 was adopted in 1986 [2]. This is the nearest quarter-hour from Greenwich to the local mean time of Nepal’s capital Kathmandu , which is at 85°19’E or 5:41:16. Old CIA maps, 1995 and earlier, have Nepal at UTC+5:40 , which may be their approximation of Kathmandu’s local mean time. See Nepal Time .

UTC + 6, F

  • Bangladesh
  • Bhutan
  • British Indian Ocean Territory (CIA)
  • Kazakhstan (Eastern)
  • Kyrgyzstan ([3] Kyrgyzstan abolished DST on August 12 2005 and moved from zone UTC+5 to UTC+6)
  • Russia
    • Altai Krai *
    • Altai Republic *
    • Novosibirsk Oblast *
    • Omsk Oblast *
    • Tomsk Oblast * (NAO),

UTC + 6:30, F*

  • Cocos Islands
  • Myanmar

UTC + 7, G

  • Cambodia
  • Christmas Island (Australia)
  • Indonesia (Western/WIB)
    • Sumatra
    • Java
    • West and Central Kalimantan
  • Laos
  • Mongolia * (Hovd , Uvs , and Bayan-Ölgiy )
  • Russia
    • Kemerovo Oblast *
    • Republic of Khakassia *
    • Krasnoyarsk Krai * (incl. Severnaya Zemlya )
    • Tomsk Oblast * (CIA),
    • Tuva Republic *
  • Thailand
  • Vietnam

UTC + 8, H

  • Australia (AWST—Australian Western Standard Time)
    • Western Australia (most of state)
  • Brunei
  • People’s Republic of China
    • Mainland China
    • Hong Kong and Macau

Note that the whole of the People’s Republic of China has the same time, which makes this time zone exceptionally wide. In the extreme west of China the sun is at its highest at 15:00, in the extreme east at 11:00. It also means that on the short (76 km) frontier with Afghanistan , the official time change is 3 hours and 30 minutes. The two western autonomous regions of China , Xinjiang and Tibet , were in UTC+6 during the Republic era (1912–1949), but were moved to UTC+8 after the founding of the People’s Republic of China in 1949. Today, residents of the two autonomous regions do everything 2 hours late. For example, lunch is at 14:00 and business hour ends around 19:00.

  • Republic of China (Taiwan)

In 1895, when Japan took over the Taiwan Island , Taiwan was placed within Japan’s Western Standard Time ( UTC+8 ) along with the Yaeyama Islands and Miyako Island (now the southwestern part of Okinawa Prefecture , Japan). However, in 1937, Japan abolished its Western Standard Time so Taiwan then observed Japan Standard Time ( UTC+9 ). Taiwan reverted back to UTC+8 after World War II with intermittent usage of daylight saving time until 1979.

  • Indonesia (Central/WITA)
    • East and South Kalimantan
    • Lesser Sunda Islands
    • Sulawesi
  • Malaysia
  • Mongolia * (most of country)
  • Philippines
  • Russia
    • Buryat Republic *
    • Irkutsk Oblast *
  • Singapore (geographically in UTC+7 , but for historical reasons uses UTC+8.

UTC + 8:45, H‡

  • Australia
    • Western Australia
      • Caiguna –Eucla – Border Village (far southeastern part of state)

UTC + 9, I

  • East Timor
  • Indonesia (Eastern/WIT)
    • Moluccas
    • Papua and West Irian Jaya (Indonesian New Guinea)
  • Japan (JST—Japan Standard Time)
  • North Korea
  • South Korea (KST—Korea Standard Time)
  • Palau
  • Russia
    • Amur Oblast*
    • Chita Oblast*
    • Sakha Republic* (western portion, incl. Yakutsk )

UTC + 9:30, I*

  • Australia (ACST—Australian Central Standard Time)
    • New South Wales
      • Broken Hill**,
    • Northern Territory,
    • South Australia**

UTC + 10, K

  • Australia (AEST— Eastern Standard Time)
    • Australian Capital Territory**,
    • New South Wales** (except Broken Hill, which observes South Australia time),
    • Queensland,
    • Tasmania** (which observes DST starting on the first weekend of October instead of the last),
    • Victoria**
  • Guam (Chamorro Standard Time via U.S. Law)
  • Federated States of Micronesia
    • Chuuk,
    • Yap, and surrounding area
  • Northern Mariana Islands (Chamorro Standard Time via U.S. law)
  • Papua New Guinea
  • Russia
    • Primorsky Krai (incl. Vladivostok)*
    • Khabarovsk Krai*
    • Sakha Republic* (central portion, incl. New Siberian Islands)
    • Sakhalin Oblast* (excluding Kurile Islands)

UTC + 10:30, K*

  • Australia
    • New South Wales
      • Lord Howe Island** (DST only 0:30)

UTC + 11, L

  • Federated States of Micronesia
    • Kosrae,
    • Pohnpei, and surrounding area
  • New Caledonia
  • Russia
    • Kuril Islands*
    • Magadan Oblast*
    • Sakha Republic* (eastern portion)
  • Solomon Islands
  • Vanuatu

UTC + 11:30, L*

  • Norfolk Island

UTC + 12, M

  • Fiji
  • Kiribati
    • Gilbert Islands
  • Marshall Islands

Kwajalein, Enewetak, and Bikini Atoll atolls in the Marshall Islands used to be on UTC−12. Kwajalein advanced 24 hours to the eastern hemisphere side of the International Date Line by skipping 21 August 1993. Eniwetok and Bikini probably advanced even earlier, when the U.S. military relinquished its control of them.

  • Nauru
  • New Zealand**
  • Russia
    • Chukotka Autonomous Okrug*
    • Kamchatka Oblast*
  • South Pole** (Amundsen-Scott South Pole Station uses New Zealand time since most flights arrive from New Zealand)
  • Tuvalu
  • Wake Island
  • Wallis and Futuna

UTC + 12:45, M‡

  • New Zealand
    • Chatham Islands**

UTC + 13, M*

  • Kiribati
    • Phoenix Islands (formerly UTC-11, advanced by skipping 31 December 1994)
  • Tonga

UTC + 14, M†

  • Kiribati
    • Line Islands (formerly UTC-10, advanced by skipping 31 December 1994)

See also