Daylight saving time by country


Daylight saving time (DST), also known as summer time, is the practice of advancing clocks during part of the year, typically by one hour around spring and summer, so that daylight ends at a later time of the day. As of 2021, DST is observed in most of Europe, most of North America and parts of Asia around the Northern Hemisphere summer, and in parts of South America and Oceania around the Southern Hemisphere summer. It was also formerly observed in other areas.

Daylight saving time (DST) by country as of 2021
  Observes DST around Northern Hemisphere summer
  Observes DST around Southern Hemisphere summer
  Formerly observed DST
  Never observed DST

Observance as of 2021


Daylight saving time in the world. Areas shown in the same color start and end DST within less than a week of each other.
Locations[1]DST startDST endShift
 Bahamas
 Bermuda
 Canada, except Yukon, most of Saskatchewan, and parts of British Columbia (northeast), Nunavut (Southampton Island), Ontario (Atikokan) and Quebec (Le Golfe-du-Saint-Laurent)
 Greenland: Thule Air Base
 Haiti
 Mexico: Baja California, and municipalities within 20 km of the U.S. border except in Sonora
 Saint Pierre and Miquelon
 Turks and Caicos Islands
 United States, except Arizona (except Navajo Nation), Hawaii, and U.S. territories
second Sunday in March at 2:00 first Sunday in November at 2:00 1:00
 Cuba second Sunday in March at 0:00 first Sunday in November at 1:00 1:00
 Mexico, except Baja California, Quintana Roo, Sonora, municipalities within 20 km of the U.S. border, and Revillagigedo Islands first Sunday in April at 2:00 last Sunday in October at 2:00 1:00
 European Union, except Overseas France
 Akrotiri and Dhekelia
 Albania
 Andorra
 Bosnia and Herzegovina
 Faroe Islands
 Gibraltar
 Greenland, except Danmarkshavn and Thule Air Base
 Guernsey
 Isle of Man
 Jersey
 Kosovo
 Liechtenstein
 Monaco
 Montenegro
 North Macedonia
 Northern Cyprus
 Norway
 San Marino
 Serbia
  Switzerland
 Ukraine, except Crimea, Donetsk PR and Luhansk PR
 United Kingdom
  Vatican City
last Sunday in March at 1:00 UTC last Sunday in October at 1:00 UTC 1:00
 Moldova  Transnistria last Sunday in March at 2:00 last Sunday in October at 3:00 1:00
 Israel Friday before last Sunday in March at 2:00 last Sunday in October at 2:00 1:00
 Jordan Friday between 26 March and 1 April at 0:00 last Friday in October at 1:00 1:00
 Lebanon last Sunday in March at 0:00 last Sunday in October at 0:00 1:00
 Palestine Saturday before last Sunday in March at 0:00 Saturday before last Sunday in October at 1:00 1:00
 Syria last Friday in March at 0:00 last Friday in October at 0:00 1:00
 Iran 1 Farvardin (20 or 21 March) at 24:00 30 Shahrivar (20 or 21 September) at 24:00 1:00
 Chile, except Magallanes Region first Saturday in September at 24:00 UTC−04:00 first Saturday in April at 24:00 UTC−03:00 1:00
 Paraguay first Sunday in October at 0:00 fourth Sunday in March at 0:00 1:00
 Australia: Australian Capital Territory, Jervis Bay Territory, New South Wales (except Lord Howe Island), Norfolk Island, South Australia, Tasmania and Victoria first Sunday in October at 2:00 first Sunday in April at 3:00 1:00
 Australia: Lord Howe Island first Sunday in October at 2:00 first Sunday in April at 2:00 0:30
 New Zealand  Samoa last Sunday in September at 2:00 UTC+12:00 first Sunday in April at 2:00 UTC+12:00 1:00
 Fiji second Sunday in November at 2:00
(in 2020, third Sunday in December at 2:00)
Sunday between 12 and 18 January at 3:00 1:00

In the table above, the DST start and end times refer to the local time before each change occurs, unless otherwise specified. The shift is the amount of time added at the DST start time and subtracted at the DST end time. For example, in Canada and the United States, when DST starts, the local time changes from 2:00 to 3:00, and when DST ends, the local time changes from 2:00 to 1:00. As the time change depends on the time zone, it does not occur simultaneously in all parts of these countries. Conversely, in the parts of Europe that observe DST, the time change occurs simultaneously at 1:00 UTC in almost all locations regardless of their time zone.

Morocco, including the portion of Western Sahara that it administers, also observes an annual time change but not related to seasonal daylight. The local time is decreased by one hour on the Sunday before Ramadan at 3:00, and increased by one hour on the Sunday after Ramadan at 2:00.

Past observance


LocationNotes[1]
 Akrotiri and DhekeliaObserved DST since 1939.
 AlbaniaObserved DST in 1940–1943, and since 1974.
 AlgeriaObserved DST in 1916–1921, in the autumn of 1939, in 1944–1945, 1971, 1977–1978, and 1980–1981.
 AndorraObserved DST since 1985.
 ArgentinaObserved DST in 1930–1969, 1974, 1988–2000, and 2007–2009.
 ArmeniaObserved DST in 1981–1995, 1997–2011.[2]
 Australia

DST used only in the Australian Capital Territory, Jervis Bay Territory, New South Wales, Norfolk Island, South Australia, Tasmania, and Victoria.

 AustriaObserved DST in 1916–1918, 1920, 1940–1948 (as part of Germany between 1940 and 1945) and since 1980.
 AzerbaijanObserved DST in 1981–1992 and 1996–2015.
 BahamasObserved DST since 1964.
 BangladeshObserved DST during World War II from 1942 to 1945 as a part of the Bengal Presidency of India. Also observed in 2009.
 BarbadosObserved DST from 1977 to 1980.
 BelarusObserved DST in 1941–1944, 1981–2010.
 BelgiumObserved DST in 1916–1940, 1942–1946 and since 1977.
 BelizeObserved DST in 1973–1974 and 1982–1983.
 BermudaObserved DST since 1974.
 BoliviaObserved DST in 1931–1932.
 Bosnia and HerzegovinaObserved DST in 1916–1918 when it was part of Austria-Hungary, in 1941–1945 and since 1983 when it was part of Yugoslavia or independent.
 BotswanaObserved DST in 1943–1944.
 BrazilObserved DST in 1931–1933, 1949–1953, 1963–1968, and 1985–2019.
 BulgariaObserved DST in 1943–1944 and since 1979.
 Canada

Yukon, most of Saskatchewan, and parts of British Columbia, Nunavut, Ontario and Quebec do not observe DST. Yukon and most of Saskatchewan use time zones equivalent to permanent DST.[3]

 Cape VerdeObserved DST in 1942–1945.
 ChadObserved DST in winter 1979–1980.
 ChileObserved DST in 1927–1946 (excluding Easter Island, which observed it in 1932–1946) and from 1968 to 2015. Chile observed year-round DST in 2015, but reintroduced regular DST in 2016. Magallanes Region does not observe DST since December 2016.
 ChinaObserved DST in 1940–1941 (when it was Republic of China) and 1986–1991. In 1949, the various former time zones of UTC+5:30, UTC+6, UTC+7, and UTC+8:30 were all abolished in favour of a unified time zone UTC+8.
 ColombiaObserved DST in 1992–1993.
 Cook IslandsObserved DST in 1978–1991.
 Costa RicaObserved DST in 1954, 1979–1980 and 1991–1992.
 CroatiaObserved DST in 1916–1918 when it was part of Austria-Hungary, in 1941–1945 and since 1983 when it was part of Yugoslavia or independent.
 CubaObserved DST in 1928, 1940–1942, 1945–1946, and since 1965.
 CyprusObserved DST since 1975. Northern Cyprus maintained permanent DST from September 2016 to October 2017.[4]
 Czech RepublicObserved DST in 1916–1918 when it was part of Austria-Hungary, 1940–1949 and since 1979 when it was part of Czechoslovakia or independent.
 DenmarkObserved DST in 1916, 1940–1948, and since 1980.
 Dominican RepublicObserved DST in 1966–1967, 1969–1974.
 EgyptObserved DST in 1940–1945, 1957–2010, and 2014–2015. An attempt to restore daylight saving after Ramadan was rejected by the Egyptian parliament on July 4, 2016 and currently has no plans to use DST in the future.
 El SalvadorObserved DST in 1987–1988.
 EstoniaObserved DST in 1918, 1940–1944, 1981–1988, 1997–1999, and since 2002.
 Faroe IslandsObserved DST since 1981.
 Falkland IslandsObserved DST in 1937–1942 and 1983–2010.
 Fiji

Observed DST in 1998–2000 and since 2009.

 FinlandObserved DST in 1942 and since 1981.
 FranceObserved DST in 1916–1945 and since 1976.
 GeorgiaObserved DST in 1981–2005.
 GermanyObserved DST in 1916–1918, 1940–1949, and since 1980.
 GhanaObserved DST in 1936–1942.
 GreeceObserved DST in 1932–1952 and since 1975.
 GreenlandObserved DST since 1980. Follows European Union practice as part of the Kingdom of Denmark, hence start and end times correspond to 01:00 UTC on the respective Sunday. See Daylight saving time in the Americas—Greenland. The Thule Air Base uses the DST schedule of Canada and the United States. Danmarkshavn has not observed DST since 1995.
 GuatemalaObserved DST in 1973–1974, 1983, 1991, and 2006.
GuernseyObserved DST in 1916–1968 and since 1972.
 HaitiObserved DST in 1983–1997, 2005–2006, 2012–2015, and since 2017.
 HondurasObserved DST in 1987–1988 and 2006.
 Hong KongObserved DST in 1941, 1945–1976, and 1979.
 HungaryObserved DST in 1916–1920, 1941–1950, 1954–1957, and since 1980. The government considered abolishing DST in 2017, moving Hungary to the UTC+02:00 (EET) year-round[5] but there are no official plans to do so yet. This would be problematic considering DST switch is coordinated on an EU level.
 IcelandObserved DST in 1917–1918 and 1939–1968.
 IndiaObserved DST during World War II from 1942 to 1945.
 IndonesiaObserved various DST offsets in 1924-1963.
 IraqObserved DST in 1982–2007.
 Iran Observed DST in 1977–1980, 1991–2005, and since 2008.
 IrelandObserved DST in 1916–1968 and since 1972.
 Isle of ManObserved DST in 1916–1968 and since 1972.
 Israel Observed DST in 1940–1946, 1948–1957, 1974–1975, 1980, and since 1984.
 ItalyObserved DST in 1916–1920, 1940–1948, and since 1966.
 JamaicaObserved DST in 1974–1983.
 JapanObserved DST in 1948–1951.
 JerseyObserved DST in 1916–1968 and since 1971.
 JordanObserved DST in 1973–1979 and 1985–2011. In 2012 changed time zone to UTC+03:00, effectively going on permanent DST. Returned to UTC+02:00 on December 20, 2013, and has observed DST since 2014.
 KazakhstanObserved DST in 1981–1990 and 1992–2004.
 KosovoObserved DST 1941–1945 and since 1983 when it was part of Yugoslavia, Serbia and Montenegro, Serbia or independent.
 KyrgyzstanObserved DST in 1981–2005.
 LatviaObserved DST in 1918–1919, 1941–1944, and since 1981.
 LebanonObserved DST in 1920–1923, 1957–1961, 1972–1978, and since 1984.
 LesothoObserved DST in 1943–1944.
 LibyaObserved DST in 1951–1959, 1982–1989, 1996–1997, and 2012–2013.
 LiechtensteinObserved DST since 1981.
 LithuaniaObserved DST in 1941–1944, 1981–1999, and since 2003.
 LuxembourgObserved DST in 1916–1946 and since 1977.
 MacauObserved DST in 1961–1980.
 MadagascarObserved DST in 1954.
 MalaysiaObserved DST in 1933–1936. The time zone in Malaysia also changed many times in the past.
 MaltaObserved DST in 1916–1920, 1940–1948, and since 1966.
 MartiniqueObserved DST in 1980. Currently Does not observe DST.
 MauritiusObserved DST in 1982–1983 and 2008–2009.
 Mexico Has observed DST in most of the country since 1996, but Baja California has observed DST since 1976, and Durango, Coahuila, Nuevo León and Tamaulipas observed DST in 1988. Sonora discontinued the observance in 1997, and Quintana Roo in 2014. Baja California and locations less than 20 km from the U.S. border in Chihuahua, Coahuila, Nuevo León and Tamaulipas use the U.S. DST schedule.[6]
 Midway AtollObserved DST in 1956.
 MoldovaObserved DST in 1932–1944, 1981–1989, and since 1991.
 MonacoObserved DST in 1916–1945 and since 1976.
 MongoliaObserved DST in 1983–1998, 2001–2006, and 2015–2016.
 MontenegroObserved DST 1941–1945 and since 1983 when it was part of Yugoslavia, Serbia and Montenegro or independent.
 MoroccoObserved DST in 1939–1945, 1950, 1967, 1974, 1976–1978, and 2008–2018. In 2012–2018, DST was suspended during the month of Ramadan. Since 2018 Morocco uses UTC+1 all year, equivalent to permanent DST, except during the month of Ramadan, when it observes UTC±0.
 NamibiaObserved DST in 1942–1943. Does not observe DST but implemented winter time in 1994 in all regions except Zambezi.[7] DST was removed in 2017.
 NetherlandsObserved DST in 1916–1945 and since 1977.
 New CaledoniaObserved DST in 1977–1979 and 1996–1997.
 New ZealandObserved DST in 1927–1946 and since 1974.
 NicaraguaObserved DST in 1973–1975, 1979–1980, 1992–1994, and 2005–2006.
 Norfolk IslandObserved DST in 1974–1975 and since 2019.[8]
 North MacedoniaObserved DST in 1941–1945 and since 1983 when it was part of Yugoslavia or independent.
 NorwayObserved DST in 1916, 1940–1945, 1959–1965, and since 1980. Follows European Union practice, although not a member.
 PakistanObserved DST in 1942–1945 as a part of the British Raj. Also observed in 2002 and from 2008 to 2009.
 PalestineSince 1974, observed DST in the same years when Israel did, but not always with the same start and end dates.
 ParaguayObserved DST since 1975. Current start and end dates last updated in 2013.
 PeruObserved DST in 1938–1940, 1986–1987, 1990, and 1994.
 PhilippinesObserved DST in 1936–1937, 1954, 1978, and 1990.
 PolandObserved DST in 1916–1919, 1940–1949, 1957–1964, and since 1977.
 PortugalObserved DST in 1916–1921, 1924, 1926–1929, 1931–1932, 1934–1949, 1951–1965, and since 1977.
 Puerto RicoObserved DST in 1942–1945.
 RomaniaFirst time when DST was observed in Romania was in 1917, due to World War I. Observed DST in 1932–1939 and since 1979.
 RussiaObserved DST in 1917–1919, 1921 (some areas), and 1981–2010. In 2011–2014, used permanent DST. In 2014, left permanent DST and switched to permanent standard time.[9]
 Saint Pierre and MiquelonObserved DST since 1987.
 Samoa Observed DST since 2010.
 San MarinoObserved DST in 1916–1920, 1940–1948, and since 1966.
 SerbiaObserved DST in 1941–1945 and since 1983 when it was part of Yugoslavia, Serbia and Montenegro or independent.[10]
 Sierra LeoneObserved DST in 1935–1942 and 1957–1962.
 SingaporeObserved DST in 1933–1935 by adding 20 minutes to standard time. On January 1, 1936, country changed their time zone to UTC+07:20.[11]
 SlovakiaObserved DST in 1916–1918 when it was part of Austria-Hungary, 1940–1949 and since 1979 when it was part of Czechoslovakia or independent.
 SloveniaObserved DST in 1916–1918 when it was part of Austria-Hungary, in 1941–1945 and since 1983 when it was part of Yugoslavia or independent.
 South AfricaObserved DST in 1942–1944.
 South KoreaObserved DST in 1948–1951, 1955–1960, and 1987–1988.
 South SudanObserved DST in 1970–1985.
 SpainObserved DST in 1917–1919, 1924, 1926–1929, 1937–1946, 1949, and since 1974. The Canary Islands observed DST since 1980.
 Sri LankaObserved DST during the World War II, from 1942 to 1945 just as the rest of the Indian subcontinent.
 SudanObserved DST in 1970–1985.
 SwedenObserved DST 15 May–30 September 1916, in a test run. Observed DST since 1980. Dates: 1980, first Sunday of April to last Sunday of September; 1981–1995, last Sunday of March to last Sunday of September; since 1996, last Sunday of March to last Sunday of October.
  SwitzerlandObserved DST in 1941–1942 and since 1981. Follows European Union practice, although not a member.
 SyriaObserved DST in 1920–1923, 1962–1968, and since 1983.
 TaiwanObserved DST in 1945–1962, 1974, 1975, and 1979.
 TajikistanObserved DST in 1981–1991.
 TongaObserved DST in 1999–2002 and 2016–2017.
 TunisiaObserved DST in 1939–1945, 1977–1978, 1988–1990, and 2005–2008.
 TurkeyObserved DST in 1916, 1920–1922, 1924–1925, 1940–1942, 1945–1951, 1962, 1964, 1970–1983, and 1985–2016. Followed European Union practice in general. In 2016, Turkey adopted the new Turkey Time time zone (UTC+03:00).
 TurkmenistanObserved DST in 1981–1991.
 Turks and CaicosObserved DST in 1979–2015 and since 2018.
 UkraineObserved DST in 1941–1943, 1981–1989, and since 1992. Follows European Union practice, although not a member. Since 2014, Crimea, the Donetsk People's Republic and the Luhansk People's Republic do not observe DST.
 United Kingdom Observed DST (commonly referred to as British Summer Time (BST)) since 1916. Year-round Summer Time (BST) + Double Summer Time (BDST) 1940–1945. Two-stage Double Summer Time (BDST) 1947. Year-round Summer Time (BST) 1968–1971.
 United States Arizona (except the Navajo Nation) and Hawaii do not observe DST.[3] Year-round DST observed in 1942–1945 and 1974–1975.
 UruguayObserved DST in 1923–1926, 1933–1943, 1959–1960, 1965–1970, 1972, 1974–1980, 1987–1993, and 2004–2015.[12]
 UzbekistanObserved DST in 1981–1991.
 VanuatuObserved DST in 1983–1993.
  Vatican CityObserved DST in 1916–1920, 1940–1948, and since 1966.
 Western SaharaThe portion administered by Morocco since 1976 observed DST whenever the country did.

Proposals to abolish seasonal changes


Many countries and territories have abolished annual time changes after observing them for many years: Argentina, Armenia, Azerbaijan, Belarus, Brazil, Cook Islands, Egypt, Falkland Islands, Georgia, Hong Kong, Iceland, Iraq, Jamaica, Kazakhstan, Kyrgyzstan, Macau, Mongolia, Namibia, Russia, Sudan, Turkey, Uruguay, and Vanuatu. Some of them adopted their former DST as standard time all year, also known as "permanent DST".

European Union

On 8 February 2018, the European Parliament voted to ask the European Commission to re-evaluate DST in the European Union.[13] An online survey was performed between 4 July and 16 August 2018, in which 4.6 million people[14] responded. The survey was especially popular in Germany, resulting in 68% of all respondends being from that country.[15] Among all participants about 84% desired not to adjust clocks twice annually.[14] Based on this poll, on 12 September 2018 the European Commission decided to propose an end to seasonal clock changes (repealing Directive 2000/84/EC).[16] In order for this proposal to be valid, the European Union legislative procedure must be followed, mainly that the Council of the European Union and the European Parliament must both approve it.

The seasonal changes were supposed to stop in 2021, but the Council of the European Union asked the European Commission for a detailed impact assessment before countries would decide on how to proceed.[15]

United States

Since 2018, several U.S. states have passed laws to abolish seasonal changes and adopt permanent DST, but these laws cannot take effect without approval from the federal government.[17] States may freely choose whether to observe DST or not, but if they observe it they must follow the national schedule, and changing their standard time also requires approval from the federal government.

See also


References


  1. "The World Clock (extended version)". timeanddate.com. Retrieved 24 March 2021.. Detailed DST information about each location, current and historical, can be found under the relevant section of this website, and can be referred to for information in this article unless otherwise specified.
  2. "Clock changes in Yerevan". World Clock. timeanddate.com. Retrieved 20 February 2013.
  3. "Sunday, March 10: Daylight Saving Time Begins in USA & Canada". Time Zone News. timeanddate.com. Retrieved 20 February 2013.
  4. Time Zone in North Nicosia, Northern Cyprus, Timeanddate.com.
  5. "Meglepő fordulat: eltörölhetik az óraátállítást". 168.hu (in Hungarian). 2016-11-16. Retrieved 2021-02-04.
  6. "Hora Oficial en los Estados Unidos Mexicanos". Centro Naciona de Metrología. Retrieved 2014-05-01.
  7. "GRN evaluates winter time change". New Era. 24 March 2016. p. 1.
  8. "DST Begins in Australia and New Zealand".
  9. "Russia returns to permanent Standard Time". timeanddate.com. Retrieved 25 October 2014.
  10. "Serbia to legislate Daylight Saving Time, EU may end it - English - on B92.net".
  11. "Time zone in Singapore". Daylight Saving Time. timeanddate.com. Retrieved 21 February 2013.
  12. "No habrá cambio de hora este verano".
  13. "EU Parliament Votes to Re-Evaluate DST in Europe". www.timeanddate.com.
  14. Summertime Consultation: 84% want Europe to stop changing the clock
  15. "Stopping the clock on seasonal time changes? Not anytime soon". POLITICO. 2020-10-24. Retrieved 2021-03-22.
  16. State of the Union 2018: Q&A on the Commission's proposal to put an end to seasonal clock changes European Commission − Press Release (Strasbourg, 12 September 2018)
  17. Daylight saving time, National Conference of State Legislatures, March 18, 2021.