List of time zones by country
This is a list representing time zones by country. Countries are ranked by total number of time zones on their territory. Time zones of a country include that of dependent territories. France, including its overseas territories, has the most time zones with 12. Many countries have daylight saving time, one added hour during the local summer, but this list does not include that information. The UTC offset in the list is not valid in practice during daylight saving time.
| Sovereign state | No. of time zones | Time zone | Notes |
| 12 | — most of French Polynesia — Marquesas Islands — Gambier Islands — Clipperton Island — Guadeloupe, Martinique, Saint Barthélemy, Saint Martin — French Guiana, Saint Pierre and Miquelon — main territory of France — Mayotte — Réunion, Crozet Islands, Scattered Islands in the Indian Ocean — Kerguelen Islands, Îles Saint-Paul and Amsterdam — Dumont-d'Urville Station — New Caledonia — Wallis and Futuna | Time in France | |
| 11 | — Kaliningrad Oblast — Most of European Russia and all railroads throughout Russia — Astrakhan Oblast, Samara Oblast, Saratov Oblast, Udmurtia, and Ulyanovsk Oblast — Bashkortostan, Chelyabinsk Oblast, Khanty–Mansia, Kurgan Oblast, Orenburg Oblast, Perm Krai, Sverdlovsk Oblast, Tyumen Oblast, and Yamalia — Omsk Oblast — Altai Krai, Altai Republic, Kemerovo Oblast, Khakassia, Krasnoyarsk Krai, Novosibirsk Oblast, Tomsk Oblast, and Tuva — Buryatia and Irkutsk Oblast — Amur Oblast, western Sakha Republic, and Zabaykalsky Krai — Jewish Autonomous Oblast, Khabarovsk Krai, Primorsky Krai, and central Sakha Republic — Magadan Oblast, eastern Sakha, and Sakhalin Oblast — Chukotka and Kamchatka Krai | Time in Russia | |
| 11 | — Baker Island and Howland Island — American Samoa, Jarvis Island, Kingman Reef, Midway Atoll and Palmyra Atoll — Hawaii, most of the Aleutian Islands, and Johnston Atoll — most of the state of Alaska — Pacific Time zone: the Pacific coast states and most of Nevada — Mountain Time zone: the Mountain states plus western parts of some adjacent states — Central Time zone: a large area spanning from the Gulf Coast to the Great Lakes — Eastern Time zone: roughly a triangle covering all the states from the Great Lakes down to Florida and east to the Atlantic coast — Puerto Rico, the U.S. Virgin Islands — Guam and the Northern Mariana Islands — Wake Island, McMurdo Station, and Amundsen–Scott South Pole Station | Time in the United States | |
| 9 | — Palmer Station, Rothera Station — Troll Station — Syowa Station — Mawson Station — Vostok Station — Davis Station — Dumont-d'Urville Station — Casey Station, Macquarie Island — McMurdo Station | Time in Antarctica | |
| 9 | — Heard and McDonald Islands — Cocos Islands — Christmas Island – South Australia, Western Australia — South Australia, Northern Territory, New South Wales — Queensland, New South Wales, Australian Capital Territory, Victoria, Tasmania — Lord Howe Island — Norfolk Island | Time in Australia | |
| 9 | — Pitcairn Islands — Cayman Islands, Turks and Caicos Islands — Anguilla, Bermuda, British Virgin Islands, Montserrat — Falkland Islands — South Georgia and the South Sandwich Islands — main territory of the United Kingdom, Saint Helena, Ascension and Tristan da Cunha, Guernsey, Isle of Man, Jersey — Gibraltar — Akrotiri and Dhekelia — British Indian Ocean Territory | Time in the United Kingdom | |
| 6 | — larger western part of British Columbia, Tungsten and the associated Cantung Mine in Northwest Territories, Yukon — Alberta, some eastern parts of British Columbia, most of Northwest Territories, Nunavut, Lloydminster and surrounding area in Saskatchewan — Manitoba, Nunavut, Ontario, Saskatchewan except Lloydminster — Nunavut east of 85°W and entire Southampton Island, Ontario east of 90°W plus several more western areas, Quebec — Labrador, New Brunswick, Nova Scotia, Prince Edward Island, eastern part of Quebec — Labrador, Newfoundland | Time in Canada | |
| 5 | — Thule Air Base in Greenland — most of Greenland, including inhabited south coast and west coast — Ittoqqortoormiit and surrounding area in Greenland's Tunu county — Danmarkshavn weather station and surrounding area in Greenland's Tunu county, Faroe Islands — main territory of the Denmark | Time in Denmark | |
| 5 | — Niue — Cook Islands — main territory of New Zealand — Chatham Islands — Tokelau | Time in New Zealand | |
| 4 | — Acre and Southwestern Amazonas — Most part of the Amazonas State, Mato Grosso, Mato Grosso do Sul, Rondônia, Roraima — the Southeast Region, the South Region, the Northeast Region, Goiás, Distrito Federal, Tocantins, Pará, Amapá — few islands on the east coast of Brazil | Time in Brazil | |
| 4 | — the state of Baja California — the states of Baja California Sur, Chihuahua, Nayarit, Sinaloa and Sonora — most of Mexico — the state of Quintana Roo | Time in Mexico | |
| 3 | — Easter Island — main territory of Chile — Magallanes and Chilean Antarctica | Time in Chile | |
| 3 | — islands of Sumatra, Java, provinces of Bangka Belitung Islands, Riau Islands, West Kalimantan and Central Kalimantan — islands of Sulawesi, Bali, provinces of East Nusa Tenggara, West Nusa Tenggara, East Kalimantan, North Kalimantan and South Kalimantan — provinces of Maluku, North Maluku, Papua and West Papua | Time in Indonesia | |
| 3 | — Gilbert Islands — Phoenix Islands — Line Islands | ||
| 2 | — provinces of Équateur, Kinshasa, Kongo Central, Kwango, Kwilu, Mai-Ndombe, Mongala, Nord-Ubangi, Sud-Ubangi and Tshuapa — provinces of Bas-Uele, Haut-Katanga, Haut-Lomami, Haut-Uele, Kasaï, Kasaï-Central, Kasaï Oriental, Lomami, Lualaba, Maniema, Nord-Kivu, Sankuru, Sud-Kivu, Tanganyika, Tshopo and Ituri Interim Administration | Time in the Democratic Republic of the Congo | |
| 2 | — Galápagos Province — main territory of Ecuador | Time in Ecuador | |
| 2 | — the states of Chuuk and Yap — the states of Kosrae and Pohnpei | ||
| 2 | — western Kazakhstan — eastern Kazakhstan | Time in Kazakhstan | |
| 2 | — Caribbean municipalities and constituent countries — main territory of the Netherlands | ||
| 2 | — the provinces of Khovd, Uvs and Bayan-Ölgii — most of the country | Time in Mongolia | |
| 2 | — most of the country — Autonomous Region of Bougainville | ||
| 2 | — Azores — Madeira and the main territory of Portugal | Time in Portugal | |
| 2 | — main territory of South Africa — Prince Edward Islands | ||
| 2 | — Canary Islands — main territory of Spain | Time in Spain | |
| 2 | — most of the country — Donetsk and Luhansk regions | Time in Ukraine | |
| 1 | Time in Afghanistan | ||
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| 1 | Time in Algeria | ||
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| 1 | Time in Angola | ||
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| 1 | Time in Argentina | ||
| 1 | Time in Armenia | ||
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| 1 | Time in Azerbaijan | ||
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| 1 | Time in Bahrain | ||
| 1 | Time in Bangladesh | ||
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| 1 | Time in Belgium | ||
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| 1 | Time in Bhutan | ||
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| 1 | Time in Bosnia and Herzegovina | ||
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| 1 | Time in Brunei | ||
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| 1 | Time in Cambodia | ||
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| 1 | Time in China | ||
| 1 | Time in Colombia | ||
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| 1 | Time in Costa Rica | ||
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| 1 | Time in Cyprus | ||
| 1 | Time in the Czech Republic | ||
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| 1 | Time in East Timor | ||
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| 1 | Time in Ethiopia | ||
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| 1 | Time in Georgia | ||
| 1 | Time in Germany | ||
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| 1 | Time in Hong Kong | ||
| 1 | Time in Hungary | ||
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| 1 | Time in India | ||
| 1 | Time in Iran | ||
| 1 | Time in Iraq | ||
| 1 | Time in Ireland | ||
| 1 | Time in Israel | ||
| 1 | Time in Italy | ||
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| 1 | Time in Jamaica | ||
| 1 | Time in Japan | ||
| 1 | Time in Jordan | ||
| 1 | Time in Kenya | ||
| 1 | Time in North Korea | ||
| 1 | Time in South Korea | ||
| 1 | Time in Kuwait | ||
| 1 | Time in Kyrgyzstan | ||
| 1 | Time in Laos | ||
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| 1 | Time in Lebanon | ||
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| 1 | Time in Macau | ||
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| 1 | Time in Malaysia | ||
| 1 | Time in the Maldives | ||
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| 1 | Time in Malta | ||
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| 1 | UTC+01:00 | ||
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| 1 | Time in Myanmar | ||
| 1 | Time in Namibia | ||
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| 1 | Time in Nepal | ||
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| 1 | Time in Norway | ||
| 1 | Time in Oman | ||
| 1 | Time in Pakistan | ||
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| 1 | Time in the State of Palestine | ||
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| 1 | Time in Paraguay | ||
| 1 | Time in Peru | ||
| 1 | Time in the Philippines | ||
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| 1 | Time in Qatar | ||
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| 1 | Time in Samoa | ||
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| 1 | Time in Saudi Arabia | ||
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| 1 | Time in Singapore | ||
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| 1 | Time in Sri Lanka | ||
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| 1 | Time in Switzerland | ||
| 1 | Time in Syria | ||
| 1 | Time in Taiwan | ||
| 1 | Time in Tajikistan | ||
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| 1 | Time in Thailand | ||
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| 1 | Time in Trinidad and Tobago | ||
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| 1 | Time in Turkey | ||
| 1 | Time in Turkmenistan | ||
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| 1 | Time in the United Arab Emirates | ||
| 1 | Time in Uruguay | ||
| 1 | Time in Uzbekistan | ||
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| 1 | Time in Venezuela | ||
| 1 | Time in Vietnam | ||
| 1 | Time in Yemen | ||
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