European Summer Time is the daylight saving time practiced in Europe, the period during which clocks are reset by one hour in relation to the official time observed during the rest of the year. An autumn 2001 U.S. public service announcement Daylight saving time (DST), also known as daylight savings time or (in British English) summer time, is the convention of advancing clocks so that evenings have more daylight and mornings have less. ... This article is 150 kilobytes or more in size. ...

This is done in all of the countries of Europe except Iceland (which observes UTC all year round). This period extends from 01.00 UTC on the last Sunday in March until 01.00 UTC on the last Sunday in October each year. ... ...

Time zones of Europe:

blue	Western European Time (UTC+0) Western European Summer Time (UTC+1)
red	Central European Time (UTC+1) Central European Summer Time (UTC+2)
yellow	Eastern European Time (UTC+2) Eastern European Summer Time (UTC+3)
green	Moscow Time (UTC+3) Moscow Summer Time (UTC+4)

Light colours indicate countries not observing summer time

Image File history File links Time_zones_of_Europe. ... Image File history File links Time_zones_of_Europe. ... Western European Time (WET) is the time zone covering parts of western and northwestern Europe, including the following countries and regions: Time zones of Europe: blue - GMT or Western European Time, red - Central European Time, green - Eastern European Time, khaki - Moscow Time. ... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... BST redirects here. ... Central European Time West Africa Time British Summer Time* Irish Summer Time* Western European Summer Time* Category: ... Time zones of Europe: Light colours indicate countries not observing summer time Central European Time (CET) is one of the names of the time zone that is 1 hour ahead of Coordinated Universal Time. ... Central European Time West Africa Time British Summer Time* Irish Summer Time* Western European Summer Time* Category: ... Time zones of Europe: Pale colours indicate countries without daylight saving Central European Summer Time (CEST) is one of the names of UTC+2 time zone, 2 hours ahead of Coordinated Universal Time. ... Eastern European Time Central Africa Time Israel Standard Time South Africa Standard Time Central European Summer Time West Africa Summer Time Category: ... Time zones of Europe: Light colours indicate countries not observing daylight saving Eastern European Time (EET) is one of the names of UTC+2 time zone, 2 hours ahead of Coordinated Universal Time. ... Eastern European Time Central Africa Time Israel Standard Time South Africa Standard Time Central European Summer Time West Africa Summer Time Category: ... Eastern European Summer Time (EEST) is one of the names of UTC+3 time zone, 3 hours ahead of Coordinated Universal Time. ... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Time zones of Europe: Light colours indicate countries not observing daylight saving Moscow Time (Russian: ) is the time zone for the city of Moscow, Russia and most of western Russia, including Saint Petersburg, Russia. ... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Moscow Time (MSK) is the time zone 3 hours ahead of UTC. Categories: Stub | Time zones ... Moscow Summer Time Category: ... Daylight saving time (also called DST, or Summer Time) is the local time a region is designated for a portion of the year, usually an hour forward from its standard official time. ...

Exact timing in the next several years

European Summer Time begins (clocks go forward) at 01.00 UTC on

• 26 March 2006
• 25 March 2007
• 30 March 2008
• 29 March 2009
• 28 March 2010

Equation used to calculate the beginning of European Summer Time:
Sunday (31 - (5*y/4 + 4) mod 7) March at 01.00 UTC
(valid through 2099, courtesy of Robert H. van Gent, EC). March 26 is the 85th day of the year in the Gregorian Calendar (86th in leap years). ... For the Manfred Mann album, see 2006 (album). ... March 25 is the 84th day of the year in the Gregorian calendar (85th in leap years). ... 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the Anno Domini (common) era. ... March 30 is the 89th day of the year in the Gregorian Calendar (90th in a leap year). ... 2008 (MMVIII) will be a leap year starting on Tuesday of the Gregorian calendar. ... March 29 is the 88th day of the year in the Gregorian Calendar (89th in leap years). ... 2009 (MMIX) will be a common year starting on Thursday of the Gregorian calendar. ... March 28 is the 87th day of the year in the Gregorian Calendar (88th in leap years). ... This article or section does not cite its references or sources. ...

European Summer Time ends (clocks go backward) at 01.00 UTC on

• 29 October 2006
• 28 October 2007
• 26 October 2008
• 25 October 2009
• 31 October 2010

Equation used to calculate the end of European Summer Time:
Sunday (31 - (5*y/4 + 1) mod 7) October at 01.00 UTC
(validity and credits as above). October 29 is the 302nd day of the year (303rd in leap years) in the Gregorian calendar. ... For the Manfred Mann album, see 2006 (album). ... October 28 is the 301st day of the year (302nd in leap years) in the Gregorian Calendar, with 64 days remaining. ... 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the Anno Domini (common) era. ... October 26 is the 299th day of the year (300th in leap years) in the Gregorian Calendar, with 66 days remaining. ... 2008 (MMVIII) will be a leap year starting on Tuesday of the Gregorian calendar. ... October 25 is the 298th day of the year (299th in leap years) in the Gregorian calendar. ... 2009 (MMIX) will be a common year starting on Thursday of the Gregorian calendar. ... October 31 is the 304th day of the year (305th in leap years) in the Gregorian Calendar, with 61 days remaining. ... This article or section does not cite its references or sources. ...

For today these formulae yield 0 (1 = summer time).

Local observations

In most of Europe the word Summer is added to the name of each European time zone during this period: thus, in the UTC+1 time zone, Central European Time becomes Central European Summer Time (UTC+2). A time zone is a region of the Earth that has adopted the same standard time, usually referred to as the local time. ... Central European Time West Africa Time British Summer Time* Irish Summer Time* Western European Summer Time* Category: ... Time zones of Europe: Light colours indicate countries not observing summer time Central European Time (CET) is one of the names of the time zone that is 1 hour ahead of Coordinated Universal Time. ... Time zones of Europe: Pale colours indicate countries without daylight saving Central European Summer Time (CEST) is one of the names of UTC+2 time zone, 2 hours ahead of Coordinated Universal Time. ... Eastern European Time Central Africa Time Israel Standard Time South Africa Standard Time Central European Summer Time West Africa Summer Time Category: ...

In the United Kingdom local time during this period is known as British Summer Time (BST), in Ireland as Irish Summer Time (IST), while in both countries local time during the rest of the year is normally referred to as Greenwich Mean Time (GMT), however Western European Time (WET) is gaining usage in Ireland, the most probable cause of which is the fact that Greenwich is in the UK, and Western European Time is more neutral. Time zones of Europe: Light colours indicate countries not observing daylight saving British Summer Time (BST) is the changing of the clocks in effect in the United Kingdom and Irish Summer Time (IST) in Republic of Ireland between the last Sunday in March and the last Sunday in October each... Time zones of Europe: Light colours indicate countries not observing daylight saving Greenwich Mean Time (GMT) is a term originally referring to mean solar time at the Royal Observatory, Greenwich in England. ... Western European Time (WET) is the time zone covering parts of western and northwestern Europe, including the following countries and regions: Time zones of Europe: blue - GMT or Western European Time, red - Central European Time, green - Eastern European Time, khaki - Moscow Time. ...

While the United Kingdom and Republic of Ireland always maintain the same time as each other, there is a slight difference how they maintain it. In the United Kingdom standard time is (GMT/UTC) and the clocks are moved forward one hour for summer. But in Republic of Ireland (according to the Standard Time Act 1968) standard time is CET (UTC+1) and the clocks are turned back for winter time. For alternate meanings of GMT, see GMT (disambiguation). ... ... Time zones of Europe: Light colours indicate countries not observing summer time Central European Time (CET) is one of the names of the time zone that is 1 hour ahead of Coordinated Universal Time. ...

Russia & Belarus

Russia & Belarus observe Summer Time and makes the change forward and back on the same dates as the European Union (respectively, on the last Sunday in March and the last Sunday in October) – with the important difference, however, that the changeover on both dates takes place in Russia not at 01.00 UTC as in the rest of Europe, but at 02.00 local time (03.00 local daylight time in October) in each time zone. Time zones are areas of the Earth that have adopted the same standard time, usually referred to as the local time. ...

Books

• Saving the Daylight: Why We Put the Clocks Forward by David Prerau (Granta Books; £14.99; ISBN 1-86207-796-7) - The Story of Summer Time/Daylight Saving Time with a focus on the UK and Europe

External link

• EU Directive 2000/84/EC on summer-time arrangements