See The World Clock for list of current times around the world, and which places are observing DST at the moment (marked by * in The World Clock).
Daylight saving time is also called summer time or daylight savings time. When DST is not observed, it is called standard time, normal time or winter time.
This list displays a brief (but not complete) overview over which countries that observed DST during 2003.
Detailed information is available for the first half of 2003 and the second half of 2003.
| Country | Region/states | Example location | DST start date | DST end date |
|---|---|---|---|---|
| Afghanistan | All locations | Kabul | No DST in 2003 | |
| Albania | All locations | Tirane | Sunday, March 30 | Sunday, October 26 |
| Algeria | All locations | Algiers | No DST in 2003 | |
| American Samoa | All locations | Pago Pago | No DST in 2003 | |
| Andorra | All locations | Andorra La Vella | Sunday, March 30 | Sunday, October 26 |
| Angola | All locations | Luanda | No DST in 2003 | |
| Anguilla | All locations | The Valley | No DST in 2003 | |
| Antarctica | Most locations | Mawson | No DST in 2003 | |
| Some locations | South Pole | Sunday, October 5 | Sunday, March 16 | |
| Antigua and Barbuda | All locations | Saint John's | No DST in 2003 | |
| Argentina | All locations | Buenos Aires | No DST in 2003 | |
| Armenia | All locations | Yerevan | Sunday, March 30 | Sunday, October 26 |
| Aruba | All locations | Oranjestad | No DST in 2003 | |
| Australia | Most locations | Brisbane | No DST in 2003 | |
| South Australia, Australian Capital Territory, Victoria, New South Wales | Melbourne | Sunday, October 26 | Sunday, March 30 | |
| Tasmania | Hobart | Sunday, October 5 | Sunday, March 30 | |
| Lord Howe Island | Lord Howe Island | Sunday, October 26 | Sunday, March 30 | |
| Austria | All locations | Vienna | Sunday, March 30 | Sunday, October 26 |
| Azerbaijan | All locations | Baku | Sunday, March 30 | Sunday, October 26 |
| Bahamas | All locations | Nassau | Sunday, April 6 | Sunday, October 26 |
| Bahrain | All locations | Manama | No DST in 2003 | |
| Bangladesh | All locations | Dhaka | No DST in 2003 | |
| Barbados | All locations | Bridgetown | No DST in 2003 | |
| Belarus | All locations | Minsk | Sunday, March 30 | Sunday, October 26 |
| Belgium | All locations | Brussels | Sunday, March 30 | Sunday, October 26 |
| Belize | All locations | Belmopan | No DST in 2003 | |
| Benin | All locations | Porto Novo | No DST in 2003 | |
| Bermuda Islands | All locations | Hamilton | Sunday, April 6 | Sunday, October 26 |
| Bhutan | All locations | Thimphu | No DST in 2003 | |
| Bolivia | All locations | La Paz | No DST in 2003 | |
| Bosnia-Herzegovina | All locations | Sarajevo | Sunday, March 30 | Sunday, October 26 |
| Botswana | All locations | Gaborone | No DST in 2003 | |
| Brazil | Most locations | Rio de Janeiro | Sunday, October 19 | Sunday, February 16 |
| Amazonas, Pernambuco, Sergipe, Para, Paraíba, Ceará, Amapá, Alagoas, Rondônia, Rio Grande do Norte, Piauí, Maranhão, Acre, Roraima | Manaus | No DST in 2003 | ||
| Bahia, Mato Grosso Do Sul, Mato Grosso, Tocantins | Salvador | Does not start this year | Sunday, February 16 | |
| British Indian Ocean Territory | All locations | Diego Garcia | No DST in 2003 | |
| British Virgin Islands | All locations | Road Town | No DST in 2003 | |
| Brunei Darussalam | All locations | Bandar Seri Begawan | No DST in 2003 | |
| Bulgaria | All locations | Sofia | Sunday, March 30 | Sunday, October 26 |
| Burkina Faso | All locations | Ouagadougou | No DST in 2003 | |
| Burundi | All locations | Bujumbura | No DST in 2003 | |
| Cambodia | All locations | Phnom Penh | No DST in 2003 | |
| Cameroon | All locations | Yaoundé | No DST in 2003 | |
| Canada | Most locations | Montreal | Sunday, April 6 | Sunday, October 26 |
| much of Saskatchewan, small region of British Columbia, small region of Nunavut Territory, small region of Quebec | Regina | No DST in 2003 | ||
| Cape Verde | All locations | Praia | No DST in 2003 | |
| Cayman Islands | All locations | George Town | No DST in 2003 | |
| Central African Republic | All locations | Bangui | No DST in 2003 | |
| Chad | All locations | Ndjamena | No DST in 2003 | |
| Chile | Most locations | Santiago | Sunday, October 12 | Sunday, March 9 |
| Easter Island | Saturday, October 11 | Saturday, March 8 | ||
| China | All locations | Beijing | No DST in 2003 | |
| Cocos Islands and Keeling Islands | All locations | Bantam | No DST in 2003 | |
| Colombia | All locations | Bogota | No DST in 2003 | |
| Comoros | All locations | Moroni | No DST in 2003 | |
| Congo | All locations | Brazzaville | No DST in 2003 | |
| Cook Islands | All locations | Rarotonga | No DST in 2003 | |
| Costa Rica | All locations | San Jose | No DST in 2003 | |
| Cote d'Ivoire (Ivory Coast) | All locations | Yamoussoukro | No DST in 2003 | |
| Croatia | All locations | Zagreb | Sunday, March 30 | Sunday, October 26 |
| Cuba | All locations | Havana | Sunday, April 6 | Sunday, October 26 |
| Cyprus | All locations | Nicosia | Sunday, March 30 | Sunday, October 26 |
| Czech Republic | All locations | Prague | Sunday, March 30 | Sunday, October 26 |
| Democratic Republic of the Congo | All locations | Kinshasa | No DST in 2003 | |
| Denmark | All locations | Copenhagen | Sunday, March 30 | Sunday, October 26 |
| Djibouti | All locations | Djibouti | No DST in 2003 | |
| Dominica | All locations | Roseau | No DST in 2003 | |
| Dominican Republic | All locations | Santo Domingo | No DST in 2003 | |
| Ecuador | All locations | Quito | No DST in 2003 | |
| Egypt | All locations | Cairo | Friday, April 25 | Friday, September 26 |
| El Salvador | All locations | San Salvador | No DST in 2003 | |
| Equatorial Guinea | All locations | Malabo | No DST in 2003 | |
| Eritrea | All locations | Asmara | No DST in 2003 | |
| Estonia | All locations | Tallinn | Sunday, March 30 | Sunday, October 26 |
| Ethiopia | All locations | Addis Ababa | No DST in 2003 | |
| Falkland Islands | All locations | Stanley | Sunday, September 7 | Sunday, April 20 |
| Faroe Islands | All locations | Tórshavn | Sunday, March 30 | Sunday, October 26 |
| Fiji | All locations | Suva | No DST in 2003 | |
| Finland | All locations | Helsinki | Sunday, March 30 | Sunday, October 26 |
| France | Most locations | Paris | Sunday, March 30 | Sunday, October 26 |
| Tahiti, New Caledonia, Marquesas Islands | Papeete | No DST in 2003 | ||
| French Guiana | All locations | Cayenne | No DST in 2003 | |
| French Polynesia | All locations | Gambier Islands | No DST in 2003 | |
| Gabon | All locations | Libreville | No DST in 2003 | |
| Gambia | All locations | Banjul | No DST in 2003 | |
| Gaza Strip | All locations | Gaza | Friday, April 18 | Friday, October 17 |
| Georgia | All locations | Tbilisi | Sunday, March 30 | Sunday, October 26 |
| Germany | All locations | Berlin | Sunday, March 30 | Sunday, October 26 |
| Ghana | All locations | Accra | No DST in 2003 | |
| Gibraltar | All locations | Gibraltar | Sunday, March 30 | Sunday, October 26 |
| Greece | All locations | Athens | Sunday, March 30 | Sunday, October 26 |
| Greenland | Most locations | Nuuk | Saturday, March 29 | Saturday, October 25 |
| Qaanaaq | Sunday, April 6 | Sunday, October 26 | ||
| Ittoqqortoormiit | Sunday, March 30 | Sunday, October 26 | ||
| Grenada | All locations | Saint George's | No DST in 2003 | |
| Guadeloupe | All locations | Basse-Terre | No DST in 2003 | |
| Guam | All locations | Guam | No DST in 2003 | |
| Guatemala | All locations | Guatemala | No DST in 2003 | |
| Guinea | All locations | Conakry | No DST in 2003 | |
| Guinea Bissau | All locations | Bissau | No DST in 2003 | |
| Guyana | All locations | Georgetown | No DST in 2003 | |
| Haiti | All locations | Port-au-Prince | No DST in 2003 | |
| Honduras | All locations | Tegucigalpa | No DST in 2003 | |
| Hong Kong | All locations | Hong Kong | No DST in 2003 | |
| Hungary | All locations | Budapest | Sunday, March 30 | Sunday, October 26 |
| Iceland | All locations | Reykjavik | No DST in 2003 | |
| India | All locations | New Delhi | No DST in 2003 | |
| Indonesia | All locations | Jakarta | No DST in 2003 | |
| Iran | All locations | Tehran | Saturday, March 22 | Monday, September 22 |
| Iraq | All locations | Baghdad | Tuesday, April 1 | Wednesday, October 1 |
| Ireland | All locations | Dublin | Sunday, March 30 | Sunday, October 26 |
| Isle of Man | All locations | Douglas | Sunday, March 30 | Sunday, October 26 |
| Israel | All locations | Jerusalem | Friday, March 28 | Friday, October 3 |
| Italy | All locations | Rome | Sunday, March 30 | Sunday, October 26 |
| Jamaica | All locations | Kingston | No DST in 2003 | |
| Japan | All locations | Tokyo | No DST in 2003 | |
| Jordan | All locations | Amman | Friday, March 28 | Friday, October 24 |
| Kazakstan | All locations | Almaty | Sunday, March 30 | Sunday, October 26 |
| Kenya | All locations | Nairobi | No DST in 2003 | |
| Kerguelen Islands | All locations | Port-aux-Francais | No DST in 2003 | |
| Kiribati | All locations | Kiritimati | No DST in 2003 | |
| Kosovo | All locations | Pristina | Sunday, March 30 | Sunday, October 26 |
| Kuwait | All locations | Kuwait City | No DST in 2003 | |
| Kyrgyzstan | All locations | Bishkek | Sunday, March 30 | Sunday, October 26 |
| Laos | All locations | Vientiane | No DST in 2003 | |
| Latvia | All locations | Riga | Sunday, March 30 | Sunday, October 26 |
| Lebanon | All locations | Beirut | Sunday, March 30 | Sunday, October 26 |
| Lesotho | All locations | Maseru | No DST in 2003 | |
| Liberia | All locations | Monrovia | No DST in 2003 | |
| Libya | All locations | Tripoli | No DST in 2003 | |
| Liechtenstein | All locations | Vaduz | Sunday, March 30 | Sunday, October 26 |
| Lithuania | All locations | Vilnius | Sunday, March 30 | Sunday, October 26 |
| Luxembourg | All locations | Luxembourg | Sunday, March 30 | Sunday, October 26 |
| Macau | All locations | Macau | No DST in 2003 | |
| Macedonia | All locations | Skopje | Sunday, March 30 | Sunday, October 26 |
| Madagascar | All locations | Antananarivo | No DST in 2003 | |
| Malawi | All locations | Lilongwe | No DST in 2003 | |
| Malaysia | All locations | Kuala Lumpur | No DST in 2003 | |
| Maldives | All locations | Male | No DST in 2003 | |
| Mali | All locations | Bamako | No DST in 2003 | |
| Malta | All locations | Valletta | Sunday, March 30 | Sunday, October 26 |
| Marshall Islands | All locations | Majuro | No DST in 2003 | |
| Martinique | All locations | Fort-de-France | No DST in 2003 | |
| Mauritania | All locations | Nouakchott | No DST in 2003 | |
| Mauritius | All locations | Port Louis | No DST in 2003 | |
| Mayotte | All locations | Mamoutzou | No DST in 2003 | |
| Mexico | Most locations | Mexico City | Sunday, April 6 | Sunday, October 26 |
| Sonora | Hermosillo | No DST in 2003 | ||
| Micronesia | All locations | Palikir | No DST in 2003 | |
| Moldova | All locations | Chisinau | Sunday, March 30 | Sunday, October 26 |
| Monaco | All locations | Monaco | Sunday, March 30 | Sunday, October 26 |
| Mongolia | All locations | Ulaanbaatar | Saturday, March 29 | Saturday, September 27 |
| Montenegro | All locations | Podgorica | Sunday, March 30 | Sunday, October 26 |
| Montserrat | All locations | Brades | No DST in 2003 | |
| Morocco | All locations | Casablanca | No DST in 2003 | |
| Mozambique | All locations | Maputo | No DST in 2003 | |
| Myanmar | All locations | Yangon | No DST in 2003 | |
| Namibia | All locations | Windhoek | Sunday, September 7 | Sunday, April 6 |
| Nauru | All locations | Yaren | No DST in 2003 | |
| Nepal | All locations | Kathmandu | No DST in 2003 | |
| Netherlands | Most locations | Amsterdam | Sunday, March 30 | Sunday, October 26 |
| Saint Martin | Philipsburg | No DST in 2003 | ||
| Netherlands Antilles | All locations | Willemstad | No DST in 2003 | |
| New Zealand | All locations | Auckland | Sunday, October 5 | Sunday, March 16 |
| Nicaragua | All locations | Managua | No DST in 2003 | |
| Niger | All locations | Niamey | No DST in 2003 | |
| Nigeria | All locations | Lagos | No DST in 2003 | |
| Niue | All locations | Alofi | No DST in 2003 | |
| Norfolk Island | All locations | Kingston | No DST in 2003 | |
| North Korea | All locations | Pyongyang | No DST in 2003 | |
| Northern Mariana Islands | All locations | Saipan | No DST in 2003 | |
| Norway | All locations | Oslo | Sunday, March 30 | Sunday, October 26 |
| Oman | All locations | Muscat | No DST in 2003 | |
| Pakistan | All locations | Islamabad | No DST in 2003 | |
| Palau | All locations | Koror | No DST in 2003 | |
| Panama | All locations | Panama | No DST in 2003 | |
| Papua New Guinea | All locations | Port Moresby | No DST in 2003 | |
| Paraguay | All locations | Asuncion | Sunday, September 7 | Sunday, April 6 |
| Peru | All locations | Lima | No DST in 2003 | |
| Philippines | All locations | Manila | No DST in 2003 | |
| Pitcairn, Henderson, Ducie and Oeno Islands | All locations | Adamstown | No DST in 2003 | |
| Poland | All locations | Warsaw | Sunday, March 30 | Sunday, October 26 |
| Portugal | All locations | Lisbon | Sunday, March 30 | Sunday, October 26 |
| Puerto Rico | All locations | San Juan | No DST in 2003 | |
| Qatar | All locations | Doha | No DST in 2003 | |
| Reunion (French) | All locations | Saint-Denis | No DST in 2003 | |
| Romania | All locations | Bucharest | Sunday, March 30 | Sunday, October 26 |
| Russian Federation | All locations | Moscow | Sunday, March 30 | Sunday, October 26 |
| Rwanda | All locations | Kigali | No DST in 2003 | |
| Saint Helena | All locations | Jamestown | No DST in 2003 | |
| Saint Kitts and Nevis | All locations | Basseterre | No DST in 2003 | |
| Saint Lucia | All locations | Castries | No DST in 2003 | |
| Saint Pierre and Miquelon | All locations | Saint-Pierre | Sunday, April 6 | Sunday, October 26 |
| Saint Vincent and Grenadines | All locations | Kingstown | No DST in 2003 | |
| Samoa | All locations | Apia | No DST in 2003 | |
| San Marino | All locations | San Marino | Sunday, March 30 | Sunday, October 26 |
| Sao Tome and Principe | All locations | São Tomé | No DST in 2003 | |
| Saudi Arabia | All locations | Riyadh | No DST in 2003 | |
| Senegal | All locations | Dakar | No DST in 2003 | |
| Serbia | All locations | Belgrade | Sunday, March 30 | Sunday, October 26 |
| Seychelles | All locations | Victoria | No DST in 2003 | |
| Sierra Leone | All locations | Freetown | No DST in 2003 | |
| Singapore | All locations | Singapore | No DST in 2003 | |
| Slovak Republic | All locations | Bratislava | Sunday, March 30 | Sunday, October 26 |
| Slovenia | All locations | Ljubljana | Sunday, March 30 | Sunday, October 26 |
| Solomon Islands | All locations | Honiara | No DST in 2003 | |
| Somalia | All locations | Mogadishu | No DST in 2003 | |
| South Africa | All locations | Johannesburg | No DST in 2003 | |
| South Korea | All locations | Seoul | No DST in 2003 | |
| Spain | All locations | Madrid | Sunday, March 30 | Sunday, October 26 |
| Sri Lanka | All locations | Colombo | No DST in 2003 | |
| Sudan | All locations | Khartoum | No DST in 2003 | |
| Suriname | All locations | Paramaribo | No DST in 2003 | |
| Swaziland | All locations | Mbabane | No DST in 2003 | |
| Sweden | All locations | Stockholm | Sunday, March 30 | Sunday, October 26 |
| Switzerland | All locations | Geneva | Sunday, March 30 | Sunday, October 26 |
| Syria | All locations | Damascus | Tuesday, April 1 | Wednesday, October 1 |
| Taiwan | All locations | Taipei | No DST in 2003 | |
| Tajikistan | All locations | Dushanbe | No DST in 2003 | |
| Tanzania | All locations | Dar es Salaam | No DST in 2003 | |
| Thailand | All locations | Bangkok | No DST in 2003 | |
| Timor-Leste | All locations | Dili | No DST in 2003 | |
| Togo | All locations | Lome | No DST in 2003 | |
| Tokelau | All locations | Fakaofo | No DST in 2003 | |
| Tonga | All locations | Nukualofa | No DST in 2003 | |
| Trinidad and Tobago | All locations | Port of Spain | No DST in 2003 | |
| Tunisia | All locations | Tunis | No DST in 2003 | |
| Turkey | All locations | Ankara | Sunday, March 30 | Sunday, October 26 |
| Turkmenistan | All locations | Ashgabat | No DST in 2003 | |
| Turks and Caicos Islands | All locations | Cockburn Town | Sunday, April 6 | Sunday, October 26 |
| Tuvalu | All locations | Funafuti | No DST in 2003 | |
| Uganda | All locations | Kampala | No DST in 2003 | |
| Ukraine | All locations | Kyiv | Sunday, March 30 | Sunday, October 26 |
| United Arab Emirates | All locations | Dubai | No DST in 2003 | |
| United Kingdom | All locations | London | Sunday, March 30 | Sunday, October 26 |
| United States | Most locations | Washington DC | Sunday, April 6 | Sunday, October 26 |
| Hawaii, much of Indiana, Arizona, Midway Islands | Honolulu | No DST in 2003 | ||
| United States Virgin Islands | All locations | Charlotte Amalie | No DST in 2003 | |
| Uruguay | All locations | Montevideo | No DST in 2003 | |
| Uzbekistan | All locations | Tashkent | No DST in 2003 | |
| Vanuatu | All locations | Port Vila | No DST in 2003 | |
| Vatican City State | All locations | Vatican City | Sunday, March 30 | Sunday, October 26 |
| Venezuela | All locations | Caracas | No DST in 2003 | |
| Vietnam | All locations | Hanoi | No DST in 2003 | |
| Wallis and Futuna | All locations | Mata-Utu | No DST in 2003 | |
| West Bank | All locations | Bethlehem | Friday, April 18 | Friday, October 17 |
| Western Sahara | All locations | El Aaiún | No DST in 2003 | |
| Yemen | All locations | Aden | No DST in 2003 | |
| Zambia | All locations | Lusaka | No DST in 2003 | |
| Zimbabwe | All locations | Harare | No DST in 2003 | |
| Daylight Saving Time observance? | Count |
|---|---|
| Countries which do not observe DST at all | 157 |
| Countries where at least one location observe DST | 81 |
| –Countries where all locations observe DST some part of the year | 73 |
| –Countries where many, but not all locations observe DST | 8 |