Central European Time


Central European Time (CET) is a standard time which is 1 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 (MET, German: MEZ) and by colloquial names such as Berlin Time, Brussels Time, Madrid Time, Paris Time, Rome Time, and Warsaw Time.

The 15th meridian east is the central axis for UTC+01:00 in the world system of time zones.

As of 2011, all member states of the European Union observe summer time (daylight saving time), from the last Sunday in March to the last Sunday in October. States within the CET area switch to Central European Summer Time (CEST -- UTC+02:00) for the summer.[1]

In Africa, UTC+01:00 is called West Africa Time (WAT), where it is used by several countries, year round.[2] Algeria, Morocco, and Tunisia also refer to it as Central European Time.[3]

Contents

Usage


Usage in Europe

Current usage

As of 2017,[4] Central European Time is currently used in Albania, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czech Republic, Denmark, France, Germany, Hungary, Italy, Kosovo*, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain (except Canary Islands), Sweden, Switzerland and Vatican City.[3]

History

After World War II Monaco, Andorra and Gibraltar implemented CET.[19]

Portugal used CET in the years 1966–1976 and 1992–1996.

United Kingdom

The time around the world is based on Universal Coordinated Time (UTC) which is roughly synonymous with Greenwich Mean Time (GMT). From late March to late October, clocks in the United Kingdom are put forward by one hour for British Summer Time (BST). Since 1997, most of the European Union aligned with the British standards for BST.

In 1968[23] there was a three-year experiment called British Standard Time, when the UK and Ireland experimentally employed British Summer Time (GMT+1) all year round; clocks were put forward in March 1968 and not put back until October 1971.[24]

Central European Time is sometimes referred to as continental time in the UK.

Other countries

Several African countries use UTC+01:00 all year long, where it's called West Africa Time (WAT), although Algeria, Morocco and Tunisia also use the term Central European Time, despite being located in North Africa.[3]

Between 2005 and 2008, Tunisia observed daylight saving time.[25] Libya also used CET during the years 1951–1959, 1982–1989, 1996–1997 and 2012–2013.

For other countries see UTC+01:00 and West Africa Time.

Discrepancies between official CET and geographical CET


Colour Legal time vs local mean time
1 h ± 30 m behind
0 h ± 30 m
1 h ± 30 m ahead
2 h ± 30 m ahead
3 h ± 30 m ahead

Legal, political and economic, as well as physical or geographical criteria are used in the drawing of time zones so official time zones rarely adhere to meridian lines. The CET time zone, were it drawn by purely geographical terms, would consist of exactly the area between meridians 7°30′ E and 22°30′ E. As a result, there are European locales that despite lying in an area with a "physical" or "nominal" UTC+01:00 time, actually use another time zone (UTC+02:00 in particular – there are no "physical" UTC+01:00 areas that employ UTC+00:00). Conversely, there are European areas that have gone for UTC+01:00, even though their "physical" time zone is UTC (typically), UTC−01:00 (westernmost Spain), or UTC+02:00 (e.g. the very easternmost parts of Norway, Sweden, Poland and Serbia). On the other hand, the people in Spain still have all work and meal hours one hour later than France and Germany even if they have the same time zone.[26] Following is a list of such "incongruences":

Historically Gibraltar maintained UTC+01:00 all year until the opening of the land frontier with Spain in 1982 when it followed its neighbour and introduced CEST.

Areas located within UTC+01:00 longitudes using other time zones

These areas are located between 7°30′ E and 22°30′ E ("physical" UTC+1)[27][28]

Areas using UTC+02:00

Areas located outside UTC+01:00 longitudes using UTC+01:00 time

These areas are located either west of 7°30′ E or east of 22°30′ E (outside nominal UTC+01:00)[27][28]

Areas between 22°30′ W and 7°30′ W (nominal UTC−01:00)

Areas between 7°30′ W and 7°30′ E (nominal UTC+00:00)

Areas between 22°30′ E and 37°30′ E (nominal UTC+02:00)

See also


References


  1. ^ "Europe Starts Daylight Saving on March 27, 2011" . www.timeanddate.com. Retrieved 2018-07-19.
  2. ^ "WAT – West Africa Time (Time Zone Abbreviation)" . www.timeanddate.com. Retrieved 2018-07-19.
  3. ^ a b c "Central European Time Zone - CET" . WorldTimeServer.com. 2015-11-19. Retrieved 2018-07-19.
  4. ^ CET – Central European Time / European Central Time (Standard Time)
  5. ^ "Time Zone & Clock Changes in Belgrade, Serbia" . www.timeanddate.com. Retrieved 2018-07-19.
  6. ^ Kunt, Miroslav (2004). "Studie - Zavedení středoevropského času" . archiv.kvalitne.cz (in Czech). Retrieved 28 June 2020.
  7. ^ a b Bartky, Ian R. (2007). One Time Fits All: The Campaigns for Global Uniformity . Stanford University Press. pp. 126–7. ISBN 978-0804756426. Retrieved 18 August 2015.
  8. ^ "Time Zone & Clock Changes in Rome, Italy" . www.timeanddate.com. Retrieved 2018-07-19.
  9. ^ "Time Zone & Clock Changes in Valletta, Malta" . www.timeanddate.com. Retrieved 2018-07-19.
  10. ^ "Time Zone & Clock Changes in Vienna, Vienna, Austria" . www.timeanddate.com. Retrieved 2018-07-19.
  11. ^ Messerli, Jakob. "Zeitsysteme" . HLS-DHS-DSS.CH (in German). Retrieved 2018-07-19.
  12. ^ "dullophob" . www.dullophob.com. Archived from the original on 2018-07-19. Retrieved 2018-07-19.
  13. ^ "Time Zone & Clock Changes in Copenhagen, Denmark" . www.timeanddate.com. Retrieved 2018-07-19.
  14. ^ "Daylight Saving Time Changes 1895 in Oslo, Norway" . www.timeanddate.com. Retrieved 2018-07-19.
  15. ^ "Time Zone & Clock Changes in Stockholm, Sweden" . www.timeanddate.com. Retrieved 2018-07-19.
  16. ^ "Daylight Saving Time Changes 1904 in Luxembourg, Luxembourg" . www.timeanddate.com. Retrieved 2018-07-20.
  17. ^ "Daylight Saving Time Changes 1918 in Luxembourg, Luxembourg" . www.timeanddate.com. Retrieved 2018-07-20.
  18. ^ "Time Zone & Clock Changes in Tirana, Albania" . www.timeanddate.com. Retrieved 2018-07-20.
  19. ^ a b c d "CET - Central European Time" . www.thetimenow.com. Retrieved 2018-07-20.
  20. ^ "Time Zone & Clock Changes in Vilnius, Lithuania" . www.timeanddate.com. Retrieved 2018-07-20.
  21. ^ "Time Changes in Poland 2017" . www.vercalendario.info. Retrieved 2018-07-20.
  22. ^ Bartky, Ian R. (2007). One Time Fits All: The Campaigns for Global Uniformity . Stanford University Press. pp. 130, 134. ISBN 978-0804756426. Retrieved 18 August 2015.
  23. ^ "Summer Time all the time" . Birmingham Daily Post. England. 13 February 1968. Retrieved 16 July 2018 – via British Newspaper Archive.
  24. ^ "Clocks to be turned back" . Birmingham Daily Post. England. 2 October 1971. Retrieved 16 July 2018 – via British Newspaper Archive.
  25. ^ "Daylight Saving Time Changes 2005 in Tunis, Tunisia" . www.timeanddate.com. Retrieved 2018-07-20.
  26. ^ Purdy, Chase. "Spain spent the last 76 years in the wrong time zone—and it's not healthy for workers" . Quartz. Retrieved 2018-07-20.
  27. ^ a b "Greece Time Zone" . www.timetemperature.com. Retrieved 2018-07-20.
  28. ^ a b "Europe Time Zones Map With Zone - madriver.me" . madriver.me. Archived from the original on 2018-07-20. Retrieved 2018-07-20.

External links









Categories: Time zones | Time in Europe | Geography of Central Europe




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