All the observed world time zones are listed by country or territory in the table below. There are the independent states with multiple time zones, the record-holder is France with 12 zones, but 11 of them are used in overseas areas and only one in the country's mainland. The same situation is in the United Kingdom, Denmark, New Zealand, Netherlands. The countries with multiple time zones in the mainland area (some of them also have the insular territories) are Russia, USA, Canada, Australia, Mexico, Brazil, Indonesia, Kazakhstan, Mongolia, Democratic Republic of the Congo, Kiribati, Micronesia, Chile, Spain, Portugal and Ecuador.
The Daylight Saving Time (DST) is widely used in Europe, North America, and in some parts of Africa, Australia and South America. It helps to make the daylight duration longer in summer by setting clock 1 hour forward in the spring (start of DST period) and by setting them 1 hour backward in autumn, when the DST period is over.
| Country or territory | UTC time offset | DST | DST period start / end |
|---|---|---|---|
| A | |||
| Afghanistan | +04:30 | none | |
| Albania | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Algeria | +01:00 | none | |
| American Samoa (USA) | −11:00 | none | |
| Andorra | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Angola | +01:00 | none | |
| Anguilla (UK) | −04:00 | none | |
| Antigua and Barbuda | −04:00 | none | |
| Argentina | −03:00 | none | |
| Armenia | +04:00 | none | |
| Aruba (Netherlands) | −04:00 | none | |
| Australia – 5 time zones See, deatiled information about all time zones in Australia, | |||
| Austria | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Azerbaijan | +04:00 | +05:00 | Last Sunday in March, 04:00 Last Sunday in October, 05:00 |
| B | |||
| Bahamas | −05:00 | −04:00 | 2-nd Sunday in March, 02:00 1-st Sunday in November, 02:00 |
| Bahrain | +03:00 | none | |
| Bangladesh | +06:00 | none | |
| Barbados | −04:00 | none | |
| Belarus | +03:00 | none | |
| Belgium | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Belize | −06:00 | none | |
| Benin | +01:00 | none | |
| Bermuda (UK) | −04:00 | −03:00 | 2-nd Sunday in March, 02:00 1-st Sunday in November, 02:00 |
| Bhutan | +06:00 | none | |
| Bolivia | −04:00 | none | |
| Bosnia and Herzegovina | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Botswana | +02:00 | none | |
| Brazil, Acre, Western Amazonas | −05:00 | none | |
| Brazil, Eastern Amazonas, Rondonia, Roraima | −04:00 | none | |
| Brazil, Mato Grosso do Sul, Mato Grosso | −04:00 | −03:00 | 3-rd Sunday in October, 00:00 3-rd Sunday in February, 00:00 |
| Brazil, Alagoas, Amapa, Maranhao, Para, Piaui, Ceara, Sergipe, Paraiba, Pernambuco, Rio Grande do Norte, Bahia, Tocantins, Distrito Federal | −03:00 | none | |
| Brazil, Espirito Santo,Goias,Minas Gerais,Parana, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, Sao Paulo | −03:00 | −02:00 | 3-rd Sunday in October, 00:00 3-rd Sunday in February, 00:00 |
| Brazil, small islands in Atlantic (Fernando de Noronha, Trindade) | −02:00 | none | |
| British Indian Ocean Territory (UK) | +06:00 | none | |
| British Virgin Islands (UK) | −04:00 | none | |
| Brunei | +08:00 | none | |
| Bulgaria | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Burkina Faso | ±00:00 | none | |
| Burundi | +02:00 | none | |
| C | |||
| Cabo Verde | −01:00 | none | |
| Cambodia | +07:00 | none | |
| Cameroon | +01:00 | none | |
| Canada – 6 time zones Detailed about time zones in Canada, in all provinces and territories, | |||
| Caribbean Netherlands (Netherlands) | −04:00 | none | |
| Cayman Islands (UK) | −05:00 | none | |
| Central African Republic | +01:00 | none | |
| Chad | +01:00 | none | |
| Chatham Islands (New Zealand) | +12:45 | +13:45 | Last Sunday in September, 02:00 1-st Sunday in April, 03:00 |
| Chile, main territory | −03:00 | none | |
| Chile, Easter Island | −05:00 | none | |
| China | +08:00 | none | |
| Christmas Island (Australia) | +07:00 | none | |
| Cocos (Keeling) Islands (Australia) | +06:30 | none | |
| Colombia | −05:00 | none | |
| Comoros | +03:00 | none | |
| Congo, Republic of the | +01:00 | none | |
| Congo, Dem. Rep., western part | +01:00 | none | |
| Congo, Dem. Rep., eastern part | +02:00 | none | |
| Cook Islands (New Zealand) | −10:00 | none | |
| Costa Rica | −06:00 | none | |
| Cote d'Ivoire | ±00:00 | none | |
| Croatia | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Cuba | −05:00 | −04:00 | 2-nd Sunday in March, 00:00 1-st Sunday in November, 01:00 |
| Curaçao (Netherlands) | −04:00 | none | |
| Cyprus | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Czech Republic | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| D | |||
| Denmark | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Djibouti | +03:00 | none | |
| Dominica | −04:00 | none | |
| Dominican Republic | −04:00 | none | |
| E | |||
| Ecuador, main territory | −05:00 | none | |
| Ecuador, Galapagos Province | −06:00 | none | |
| Egypt | +02:00 | none | |
| El Salvador | −06:00 | none | |
| Equatorial Guinea | +01:00 | none | |
| Eritrea | +03:00 | none | |
| Estonia | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Ethiopia | +03:00 | none | |
| F | |||
| Falkland Islands (UK) | −03:00 | none | |
| Faroe Islands (Denmark) | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| Fiji | +12:00 | none | |
| Finland | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| France | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| French Guiana (France) | −03:00 | none | |
| French Polynesia, Tahiti Island (France) | −10:00 | none | |
| French Polynesia, Marquesas Islands (France) | −09:30 | none | |
| French Polynesia, Gambier Islands (France) | −09:00 | none | |
| G | |||
| Gabon | +01:00 | none | |
| Gambia | ±00:00 | none | |
| Georgia | +04:00 | none | |
| Germany | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Ghana | ±00:00 | none | |
| Gibraltar (UK) | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Greece | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Greenland (Denmark), most of | −03:00 | −02:00 | Last Saturday in March, 22:00 Last Saturday in October, 23:00 |
| Greenland (Denmark), Thule Air Base | −04:00 | −03:00 | 2-nd Sunday in March, 02:00 1-st Sunday in November, 02:00 |
| Greenland (Denmark), Ittoqqortoormiit | −01:00 | ±00:00 | Last Sunday in March, 00:00 Last Sunday in October, 01:00 |
| Grenada | −04:00 | none | |
| Guadeloupe (France) | −04:00 | none | |
| Guam (USA) | +10:00 | none | |
| Guatemala | −06:00 | none | |
| Guernsey (UK) | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| Guinea | ±00:00 | none | |
| Guinea-Bissau | ±00:00 | none | |
| Guyana | −04:00 | none | |
| H | |||
| Haiti | −05:00 | −04:00 | 2-nd Sunday in March, 02:00 1-st Sunday in November, 02:00 |
| Honduras | −06:00 | none | |
| Hong Kong (China) | +08:00 | none | |
| Hungary | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| I | |||
| Iceland | ±00:00 | none | |
| India | +05:30 | none | |
| Indonesia, Sumatra Island, Java Island, West Kalimantan, Central Kalimantan | +07:00 | none | |
| Indonesia, Sulawesi Island, Lesser Sunda Islands, North Kalimantan, East Kalimantan, South Kalimantan | +08:00 | none | |
| Indonesia, Maluku Islands, Papua, West Papua | +09:00 | none | |
| Iran | +03:30 | +04:30 | March 21, 00:00 (±1 day) September 21, 00:00 (±1 day) |
| Iraq | +03:00 | none | |
| Ireland | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| Isle of Man (UK) | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| Israel | +02:00 | +03:00 | Friday before the last Sunday in March, 02:00 Last Sunday in October, 02:00 |
| Italy | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| J | |||
| Jamaica | −05:00 | none | |
| Japan | +09:00 | none | |
| Jersey (UK) | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| Jordan | +02:00 | +03:00 | Friday after the last Thursday in March, 00:00 Last Friday in October, 01:00 |
| K | |||
| Kazakhstan, western part | +05:00 | none | |
| Kazakhstan, eastern part | +06:00 | none | |
| Kenya | +03:00 | none | |
| Kerguelen Islands (France) | +05:00 | none | |
| Kiribati, Gilbert Islands | +12:00 | none | |
| Kiribati, Phoenix Islands | +13:00 | none | |
| Kiribati, Line Islands | +14:00 | none | |
| Kosovo | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Kuwait | +03:00 | none | |
| Kyrgyzstan | +06:00 | none | |
| L | |||
| Laos | +07:00 | none | |
| Latvia | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Lebanon | +02:00 | +03:00 | Last Sunday in March, 00:00 Last Sunday in October, 00:00 |
| Lesotho | +02:00 | none | |
| Liberia | ±00:00 | none | |
| Libya | +01:00 | none | |
| Liechtenstein | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Lithuania | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Luxembourg | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| M | |||
| Macedonia | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Madagascar | +03:00 | none | |
| Malawi | +02:00 | none | |
| Malaysia | +08:00 | none | |
| Maldives | +05:00 | none | |
| Mali | ±00:00 | none | |
| Malta | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Marshall Islands | +12:00 | none | |
| Martinique (France) | −04:00 | none | |
| Mauritania | ±00:00 | none | |
| Mauritius | +04:00 | none | |
| Mayotte (France) | +03:00 | none | |
| Mexico, most of | −06:00 | −05:00 | 1-st Sunday in April, 02:00 Last Sunday in October, 02:00 |
| Mexico, state of Quintana Roo | −05:00 | none | |
| Mexico, states of Baja California Sur, Chihuahua, Nayarit, Sinaloa | −07:00 | −06:00 | 1-st Sunday in April, 02:00 Last Sunday in October, 02:00 |
| Mexico, state of Sonora | −07:00 | none | |
| Mexico, state of Baja California | −08:00 | −07:00 | 2-nd Sunday in March, 02:00 1-st Sunday in November, 02:00 |
| Micronesia, states of Chuuk and Yap | +10:00 | none | |
| Micronesia, states of Kosrae and Pohnpei | +11:00 | none | |
| Moldova | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Monaco | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Mongolia, most of | +08:00 | +09:00 | Last Saturday in March, 02:00 Last Saturday in October, 00:00 |
| Mongolia, provinces of Khovd, Uvs, Bayan-Olgii | +07:00 | +08:00 | Last Saturday in March, 02:00 Last Saturday in October, 00:00 |
| Montenegro | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Montserrat (UK) | −04:00 | none | |
| Morocco | ±00:00 | +01:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 with return to standard time during Ramadan month |
| Mozambique | +02:00 | none | |
| Myanmar (Burma) | +06:30 | none | |
| N | |||
| Namibia | +01:00 | +02:00 | 1-st Sunday in September, 02:00 1-st Sunday in April, 02:00 |
| Nauru | +12:00 | none | |
| Nepal | +05:45 | none | |
| Netherlands | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| New Caledonia (France) | +11:00 | none | |
| New Zealand | +12:00 | +13:00 | Last Sunday in September, 02:00 1-st Sunday in April, 03:00 |
| Nicaragua | −06:00 | none | |
| Niger | +01:00 | none | |
| Nigeria | +01:00 | none | |
| Niue (New Zealand) | −11:00 | none | |
| Norfolk Island (Australia) | +11:30 | none | |
| North Korea | +09:00 | none | |
| Northern Mariana Islands (USA) | +10:00 | none | |
| Norway | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| O | |||
| Oman | +04:00 | none | |
| P | |||
| Pakistan | +05:00 | none | |
| Palau | +09:00 | none | |
| Palestine | +02:00 | +03:00 | Last Saturday in March, 00:00 3-rd Friday in October, 00:00 |
| Panama | −05:00 | none | |
| Papua New Guinea | +10:00 | none | |
| Paraguay | −04:00 | −03:00 | 1-st Sunday in October, 00:00 Last Sunday in March, 00:00 |
| Peru | −05:00 | none | |
| Philippines | +08:00 | none | |
| Pitcairn Islands (UK) | −08:00 | none | |
| Poland | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Portugal, main territory | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| Portugal, Azores | −01:00 | ±00:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Puerto Rico (USA) | −04:00 | none | |
| Q | |||
| Qatar | +03:00 | none | |
| R | |||
| Réunion (France) | +04:00 | none | |
| Romania | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Russia – 11 time zones See deatiled information about all time zones in Russia, and the UTC time offsets in the major cities. | |||
| Rwanda | +02:00 | none | |
| S | |||
| St. Barthélemy (France) | −04:00 | none | |
| St. Helena (UK) | ±00:00 | none | |
| St. Kitts and Nevis | −04:00 | none | |
| St. Lucia | −04:00 | none | |
| St. Martin (France) | −04:00 | none | |
| St. Pierre and Miquelon (France) | −03:00 | −02:00 | 2-nd Sunday in March, 02:00 1-st Sunday in Novemober, 02:00 |
| St. Vincent and The Grenadines | −04:00 | none | |
| Samoa | +13:00 | +14:00 | Last Sunday in September, 03:00 1-st Sunday in April, 04:00 |
| San Marino | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Sao Tome and Principe | ±00:00 | none | |
| Saudi Arabia | +03:00 | none | |
| Senegal | ±00:00 | none | |
| Serbia | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Seychelles | +04:00 | none | |
| Sierra Leone | ±00:00 | none | |
| Singapore | +08:00 | none | |
| Sint Maarten (Netherlands) | −04:00 | none | |
| Slovakia | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Slovenia | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Solomon Islands | +11:00 | none | |
| Somalia | +03:00 | none | |
| South Africa | +02:00 | none | |
| South Korea | +09:00 | none | |
| South Sudan | +03:00 | none | |
| Spain, main territory | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Spain, Canary Islands | ±00:00 | +01:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Sri Lanka | +05:30 | none | |
| Sudan | +03:00 | none | |
| Suriname | −03:00 | none | |
| Swaziland | +02:00 | none | |
| Sweden | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Switzerland | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Syria | +02:00 | +03:00 | Last Friday in March, 00:00 Last Friday in October, 00:00 |
| T | |||
| Taiwan | +08:00 | none | |
| Tajikistan | +05:00 | none | |
| Tanzania | +03:00 | none | |
| Thailand | +07:00 | none | |
| Timor-Leste | +09:00 | none | |
| Togo | ±00:00 | none | |
| Tokelau (New Zealand) | +13:00 | none | |
| Tonga | +13:00 | none | |
| Trinidad and Tobago | −04:00 | none | |
| Tunisia | +01:00 | none | |
| Turkey | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| Turkmenistan | +05:00 | none | |
| Turks and Caicos Islands (UK) | −04:00 | none | |
| Tuvalu | +12:00 | none | |
| U | |||
| Uganda | +03:00 | none | |
| Ukraine | +02:00 | +03:00 | Last Sunday in March, 03:00 Last Sunday in October, 04:00 |
| United Arab Emirates | +04:00 | none | |
| United Kingdom | ±00:00 | +01:00 | Last Sunday in March, 01:00 Last Sunday in October, 02:00 |
| United States of America – 9 time zones See the detailed list of USA time zones by state, | |||
| Uruguay | −03:00 | −02:00 | 1-st Sunday in October, 02:00 2-nd Sunday in March, 02:00 |
| US Virgin Islands (USA) | −04:00 | none | |
| Uzbekistan | +05:00 | none | |
| V | |||
| Vanuatu | +11:00 | none | |
| Vatican City (Holy See) | +01:00 | +02:00 | Last Sunday in March, 02:00 Last Sunday in October, 03:00 |
| Venezuela | −04:30 | none | |
| Vietnam | +07:00 | none | |
| W | |||
| Wallis and Futuna (France) | +12:00 | none | |
| Y | |||
| Yemen | +03:00 | none | |
| Z | |||
| Zambia | +02:00 | none | |
| Zimbabwe | +02:00 | none | |
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