Western European Time

Last updated
Time in Europe:
Light Blue
Western European Time / Greenwich Mean Time (UTC)
Blue
Western European Time / Greenwich Mean Time (UTC)
Western European Summer Time / British Summer Time / Irish Standard Time (UTC+1)
Red
Central European Time (UTC+1)
Central European Summer Time (UTC+2)
Yellow
Eastern European Time / Kaliningrad Time (UTC+2)
Ochre
Eastern European Time (UTC+2)
Eastern European Summer Time (UTC+3)
Green
Moscow Time / Turkey Time (UTC+3)
Turquoise
Armenia Time / Azerbaijan Time / Georgia Time / Samara Time (UTC+4)
#### Pale colours: Standard time observed all year
### Dark colours: Summer time observed Time zones of Europe, incl. Transcaucasia.svg
Time in Europe:
Light Blue Western European Time / Greenwich Mean Time (UTC)
Blue Western European Time / Greenwich Mean Time (UTC)
Western European Summer Time / British Summer Time / Irish Standard Time (UTC+1)
Red Central European Time (UTC+1)
Central European Summer Time (UTC+2)
Yellow Eastern European Time / Kaliningrad Time (UTC+2)
Ochre Eastern European Time (UTC+2)
Eastern European Summer Time (UTC+3)
Green Moscow Time / Turkey Time (UTC+3)
Turquoise Armenia Time / Azerbaijan Time / Georgia Time / Samara Time (UTC+4)
 Pale colours: Standard time observed all year
 Dark colours: Summer time observed

Western European Time (WET, UTC±00:00) is a time zone covering parts of western Europe and consists of countries using UTC±00:00 (also known as Greenwich Mean Time, abbreviated GMT). [1] [2] It is one of the three standard time zones in the European Union along with Central European Time and Eastern European Time. [3] [2]

Contents

The following Western European countries and regions use UTC±00:00 in winter months:

All the above countries except Iceland [14] implement daylight saving time in summer (from the last Sunday in March to the last Sunday in October each year), switching to Western European Summer Time (WEST, UTC+01:00), which is one hour ahead of WET. [15] WEST is called British Summer Time in the UK and is legally defined as Irish Standard Time in Ireland.

The nominal span of the UTC±00:00 time zone is 7.5°E to 7.5°W (0° ± 7.5°), but does not include the Netherlands, Belgium, Luxembourg, France, Gibraltar or Spain (except Canary Islands) which use Central European Time (CET) even though these are mostly or completely west of 7.5°E. Conversely, Iceland and eastern Greenland use UTC±00:00 although both are west of 7.5°W. In September 2013, a Spanish parliamentary committee recommended switching to UTC±00:00. [16] [17] [18]

Historical uses

A slight variation of UTC±00:00, based until 1911 on the Paris Meridian, was used in:

Until the Second World War, France used UTC±00:00. However, the German occupation switched France to German time, and it has remained in CET since then. [31] Two other occupied territories, Belgium and the Netherlands, did the same, and Spain also switched to CET in solidarity with Germany under the orders of General Franco. [32]

In the United Kingdom, from 1940 to 1945 British Summer Time (BST=CET) was used in winters, and from 1941 to 1945 and again in 1947, British Double Summer Time (BDST=CEST) was used in summers. Between 18 February 1968 and 31 October 1971, BST was used all year round. [33] [34]

In Ireland, from 1940 to 1946 Irish Summer Time (IST=CET) was used all year round, with no 'double' summer time akin to that in the United Kingdom. Between 18 February 1968 and 31 October 1971, Irish Standard Time was used all year round. [35] [36]

In Portugal, CET was used in the mainland from 1966 to 1976 and from 1992 to 1996. The autonomous region of the Azores used WET from 1992 to 1993. [37] [38] [39]

Anomalies

Difference between legal time and local mean solar time in Europe during the winter Tzdiff-Europe-winter.png
Difference between legal time and local mean solar time in Europe during the winter
ColourLegal time vs local mean time
1 h ± 30 m behind
0 h ± 30 m
1 h ± 30 m ahead
2 h ± 30 m ahead

Regions located outside UTC longitudes

Located west of 22°30′ W ("physical" UTC−2)

Located west of 7°30′ W ("physical" UTC-1)

Areas located within UTC+00:00 longitudes using other time zones

These areas are actually located between 7°30′E and 7°30′W (nominally UTC+0) but use UTC+01:00 (Central European Time, nominally for longitudes between 7°30′E and 22°30′E):

All of

and most of

and minor parts of other countries.

Related Research Articles

<span class="mw-page-title-main">Time zone</span> Area that observes a uniform standard time

A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.

<span class="mw-page-title-main">Western European Summer Time</span> Time zone (UTC+01:00)

Western European Summer Time is a summer daylight saving time scheme, 1 hour ahead of Greenwich Mean Time and Coordinated Universal Time. It is used in:

<span class="mw-page-title-main">Central European Time</span> Standard time (UTC+01:00)

Central European Time (CET) is a standard time of Central, and parts of Western Europe, which is one hour ahead of Coordinated Universal Time (UTC). The time offset from UTC can be written as UTC+01:00. It is used in most parts of Europe and in a few North African countries. CET is also known as Middle European Time and by colloquial names such as Amsterdam Time, Berlin Time, Brussels Time, Madrid Time, Paris Time, Rome Time, Prague time,Warsaw Time or Romance Standard Time (RST).

<span class="mw-page-title-main">Summer time in Europe</span> Variation of standard clock time

Summer time in Europe is the variation of standard clock time that is applied in most European countries in the period between spring and autumn, during which clocks are advanced by one hour from the time observed in the rest of the year, with a view to making the most efficient use of seasonal daylight. It corresponds to the notion and practice of daylight saving time (DST) to be found in some other parts of the world.

<span class="mw-page-title-main">Eastern European Time</span> Time zone (UTC+02:00)

Eastern European Time (EET) is one of the names of UTC+02:00 time zone, 2 hours ahead of Coordinated Universal Time. The zone uses daylight saving time, so that it uses UTC+03:00 during the summer.

<span class="mw-page-title-main">Central European Summer Time</span> Daylight savings time in the central European time zone

Central European Summer Time (CEST), sometimes referred to as Central European Daylight Time (CEDT), is the standard clock time observed during the period of summer daylight-saving in those European countries which observe Central European Time during the other part of the year. It corresponds to UTC+02:00, which makes it the same as Eastern European Time, Central Africa Time, South African Standard Time, Egypt Standard Time and Kaliningrad Time in Russia.

<span class="mw-page-title-main">UTC+01:00</span> Identifier for a time offset

UTC+01:00 is an identifier for a time offset from UTC of +01:00. In ISO 8601, the associated time would be written as 2019-02-07T23:28:34+01:00. This time is used in:

<span class="mw-page-title-main">UTC+05:30</span> Time zone

UTC+5:30 is an identifier for a time offset from UTC of +05:30. This time is used in India and Sri Lanka, and was formerly used in Nepal. It is five and a half hours ahead of Coordinated Universal Time. Around 1.4 billion people live inside this time zone, making it the second-most populous after UTC+08:00.

<span class="mw-page-title-main">UTC+02:00</span> Identifier for a time offset from UTC of +2

UTC+02:00 is an identifier for a time offset from UTC of +02:00. In ISO 8601, the associated time would be written as 2020-11-08T23:41:45+02:00. This time is used in:

<span class="mw-page-title-main">Time in Russia</span> About the 11 time zones of Russia

There are eleven time zones in Russia, which currently observe times ranging from UTC+02:00 to UTC+12:00. Daylight saving time (DST) has not been used in Russia since 26 October 2014. From 27 March 2011 to 26 October 2014, permanent DST was used.

<span class="mw-page-title-main">Time in the United Kingdom</span> Overview of the time zones used in the United Kingdom

The United Kingdom uses Greenwich Mean Time or Western European Time (UTC) and British Summer Time or Western European Summer Time (UTC+01:00).

<span class="mw-page-title-main">UTC+00:00</span> Identifier for the UTC +0 offset

UTC+00:00 is an identifier for a time offset from UTC of +00:00. This time zone is the basis of UTC and all other time zones are based on it. In ISO 8601, an example of the associated time would be written as 2023-01-01T12:12:34+00:00. It is also known by the following geographical or historical names:

<span class="mw-page-title-main">Time in Europe</span> Time zones in Europe

Europe spans seven primary time zones, excluding summer time offsets. Most European countries use summer time and harmonise their summer time adjustments; see Summer time in Europe for details.

<span class="mw-page-title-main">Time in the Republic of Ireland</span> Time zone (UTC+1 summer, UTC+0 winter)

Ireland uses Irish Standard Time in the summer months and Greenwich Mean Time in the winter period.

Daylight saving time in the Americas is the arrangement in the Americas by which clocks are advanced by one hour in spring and moved back in autumn, to make the most of seasonal daylight. The practice is widespread in North America, with most of Canada and the United States participating, but much less so in Central and South America.

<span class="mw-page-title-main">Daylight saving time by country</span>

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 2023, 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.

<span class="mw-page-title-main">Time in Spain</span> Time zones in Spain

Spain has two time zones and observes daylight saving time. Spain mainly uses CET (UTC+01:00) and CEST (UTC+02:00) in Peninsular Spain, the Canarian Islands, Ceuta, Melilla and the plazas de soberanía. In the Canary Islands, the time zone is WET (UTC±00:00) and WEST (UTC+01:00). DST is observed from the last Sunday in March to the last Sunday in October throughout Spain.

<span class="mw-page-title-main">Time in Poland</span> Time zones used in Poland

Time in Poland is given by Central European Time. Daylight saving time, which moves an hour ahead, is observed from the last Sunday in March to the last Sunday in October. This is shared with several other EU member states.

In North Macedonia, the standard time is Central European Time. Daylight saving time is observed from the last Sunday in March to the last Sunday in October. This is shared with several other EU member states.

References

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  2. 1 2 "Reasoned opinion on subsidiarity" (PDF). Committee on Legal Affairs –European Parliament. 2019.
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  5. "Lighter nights would keep youngsters fitter and safer, say doctors". Western Mail. Cardiff. 27 June 2005.
  6. David Ennals "British Standard Times Bill [Lords]", Hansard, House of Commons Debate, 23 January 1968, vol 757 cc290-366, 290–92
  7. "British Standard Time", Hansard (HC), 2 December 1970, vol 807 cc1331-422
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  14. "Countries that do not observe DST | GreenwichMeanTime.com". greenwichmeantime.com. Retrieved 2018-11-29.
  15. "What Countries Do Daylight Savings?". WorldAtlas. Retrieved 2018-11-29.
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  18. Dewey, Caitlin (26 September 2013). "Spaniards are less productive, constantly tired because Spain is in the wrong time zone". The Washington Post.
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