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. , DST is observed in most of Europe, most of North America and parts of Africa and 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.

Scheduled observance

, the following locations were scheduled to start and end DST at the following times:. 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.

Locations DST start DST end Shift Bahamas Bermuda Canada: Atlantic provinces, Manitoba, most of Nunavut (except Southampton Island), Ontario (except Atikokan and Mishkeegogamang areas) and Quebec (except Le Golfe-du-Saint-Laurent), and parts of Saskatchewan (Creighton and Lloydminster areas) Greenland: Pituffik Space Base Haiti Mexico: Baja California, and municipalities near the U.S. border except in Sonora Saint Pierre and Miquelon Turks and Caicos Islands United States, except Arizona (without Navajo Nation), Hawaii and U.S. territories Second Sunday in March at 02:00 First Sunday in November at 02:00 1 hour Cuba Second Sunday in March at 00:00 First Sunday in November at 01:00 1 hour European Union, except Overseas France Akrotiri and Dhekelia Albania Andorra Bosnia and Herzegovina Faroe Islands Gibraltar Greenland, except Pituffik Space Base and east coast of National Park Guernsey Isle of Man Jersey Kosovo Liechtenstein Moldova Monaco Montenegro North Macedonia Northern Cyprus Norway San Marino Serbia Switzerland Transnistria Ukraine, except occupied territories United Kingdom Vatican City Last Sunday in March at 01:00 UTC Last Sunday in October at 01:00 UTC 1 hour Lebanon Last Sunday in March at 00:00 Last Sunday in October at 00:00 1 hour Israel Friday before last Sunday in March at 02:00 Last Sunday in October at 02:00 1 hour Palestine Saturday before last Sunday in March at 02:00 Saturday before last Sunday in October at 02:00 1 hour Egypt Last Friday in April at 00:00 Last Thursday in October at 24:00 1 hour Chile, except Aysén and Magallanes regionsFirst Saturday in September at 24:00 UTC−04:00 First Saturday in April at 24:00 UTC−03:00 1 hour 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 02:00 First Sunday in April at 03:00 1 hour Australia: Lord Howe Island First Sunday in October at 02:00 First Sunday in April at 02:0030 minutes New Zealand Last Sunday in September at 02:00 UTC+12:00 First Sunday in April at 03:00 UTC+13:00 1 hour

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 02:00 to 03:00, and when DST ends, the local time changes from 02:00 to 01:00. As the time change depends on the time zone, it does not occur simultaneously in all parts of these countries. Conversely, in almost all parts of Europe that observe DST, the time change occurs simultaneously at 01:00 UTC regardless of their time zone.

Historical observance