Western European Time
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- Canary Islands, since 1 March 1922 (rest of Spain is CET, i.e. UTC+1)
- Faroe Islands, since 1908
- North Eastern Greenland (Danmarkshavn and surrounding area)
- Iceland, since 1968
- Portugal, since 1912 with pauses (except Azores, UTC-1)
- Ireland, since 1916, except in 1968–71. See time in the Republic of Ireland.
- The United Kingdom and its dependencies the Channel Islands and the Isle of Man. It is legally known as Greenwich Mean Time within the British Islands and has been in standard use in England, Scotland and Wales since 1847, and Northern Ireland since 1916. Different British time zones have been trialled for short periods during these years.
All the above countries except Iceland implement daylight saving time in summer, switching to Western European Summer Time (WEST, UTC+1), which is one hour ahead of WET. WEST is called British Summer Time in the UK.
The nominal span of the time zone is 7.5°E to 7.5°W (0° ± 7.5°), but the WET zone does not include the Netherlands, Belgium, Luxembourg, France, Gibraltar or Spain which use Central European Time (CET), even though these are mostly (France) or completely (the rest) west of 7.5°E. Conversely, Iceland and eastern Greenland are included even though both are west of 7.5°W. In September 2013, a Spanish parliamentary committee recommended switching to WET, a move which is being considered by MPs.
A slight variation of this time zone, based until 1911 on the Paris Meridian, was used in:
- Andorra: 1901–46
- Belgium: 1892–1914 and 1919–1940
- France: 1911–1940 and 1944–1945
- Gibraltar: 1880–1957
- Luxembourg: 1918–1940
- Monaco: 1911–1945
Until the Second World War, France used WET. However, the German occupation switched France to German time, and it has remained in CET since then. 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.
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.
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.
- "Una hora menos en Canaria: apunte histórico-jurídico" (in Spanish). University of Las Palmas de Gran Canaria. 2006. Retrieved 7 December 2012.
- "Time Zones of Portugal". Statoids. Retrieved 18 October 2011.
- Lighter nights would keep youngsters fitter and safer, say doctors.... Western Mail. 27 June 2005
- David Ennals "British Standard Times Bill [Lords]", Hansard, House of Commomns Debate, 23 January 1968, vol 757 cc290-366, 290–92
- "British Standard Time", Hansard (HC), 2 December 1970, vol 807 cc1331-422
- Spain considers time zone change to boost productivity
- Adiós, siesta? Spain considers ending Franco's change to working hours
- Spaniards are less productive, constantly tired because Spain is in the wrong time zone
- Poulle, Yvonne (1999). "La France à l'heure allemande". Bibliothèque de l'école des chartes 157 (2): 493–502. Retrieved 11 January 2012.
- Decreto Legislativo Regional n.º 29/92/A (23-12-1992) (in Portuguese), Diário da República (Diary of the Republic) – 1st Series - A, nr. 295, p. 5932-(2), 23 December 1992. Retrieved 11 January 2014
- Decreto Legislativo Regional n.º 8/93/A (26-03-1993) (in Portuguese), Diário da República (Diary of the Republic) – 1st Series - A, nr. 72, p. 1496-(272), 23 March 1993. Retrieved 11 January 2014
- Decreto Legislativo Regional n.º 9/93/A (15-07-1993) (in Portuguese), Diário da República (Diary of the Republic) – 1st Series - A, nr. 164, p. 3845-3846, 15 July 1993. Retrieved 11 January 2014