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"Time in Europe
Light colours indicate where standard time is observed all year;
dark colours indicate where a "summer time is observed.
Time in Africa
Light colors indicate where standard time is observed all year; dark colors indicate where "daylight savings is observed.
Note: The islands of "Cape Verde are to the west of the African mainland.
Central European Time (CET), used in most parts of "Europe and a few "North African countries, is a "standard time which is 1 hour ahead of "Coordinated Universal Time (UTC). The "time offset from "UTC can be written as "+01:00. The same standard time, "UTC+01:00, is also known as Middle European Time (MET, German: MEZ) and under other names like Berlin Time, Romance Standard Time (RST), Paris Time or Rome 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; those that during the winter use CET use "Central European Summer Time (CEST) (or: "UTC+02:00, "daylight saving time) in summer (from last Sunday of March to last Sunday of October).
A number of African countries use "UTC+01:00 all year long, where it is called "West Africa Time (WAT), although "Algeria and "Tunisia also use the term Central European Time.
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Usage in Europe
The monument 'The 15th Meridian' in "Stargard
Central European Time is currently (updated 2017) used in "Albania, "Andorra, "Austria, "Belgium, "Bosnia and Herzegovina, "Croatia, "Czech Republic, "Denmark, "France, "Germany, "Hungary, "Italy, "Liechtenstein, "Luxembourg, "Macedonia, "Malta, "Monaco, "Montenegro, "Netherlands, "Norway, "Poland, "San Marino, "Serbia, "Slovakia, "Slovenia, "Spain, "Sweden and "Switzerland and Kosovo
- The areas of current "Croatia start using CET.
- The areas of current "Hungary start using CET.
- 1 April 1893
- Switzerland switches from "UTC+00:30 to CET
- Liechtenstein introduces CET.
- Denmark adopts CET.
- Luxembourg introduces CET, but leaves 1918.
- During "World War I CET was implemented in all German-occupied territories.
- Lithuania adopts CET, but rescinds in 1940.
- Under German occupation:
- The Netherlands was switched from "UTC+00:20 to CET.
- Belgium was switched from UTC+00:00.
- Luxembourg was switched from UTC+00:00.
- "France, which had adopted Paris time on 14 March 1891 and Greenwich Mean Time on 9 March 1911, was switched to CET.
After World War II "Monaco, "Spain, "Andorra and "Gibraltar implemented CET.
"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 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.
Central European Time is sometimes referred to as "continental time in the UK.
Several African countries use "UTC+01:00 all year long, where it called "West Africa Time (WAT), although "Algeria and "Tunisia also use the term Central European Time, despite being located in "North Africa.
Between 2005 and 2008, "Tunisia observed "daylight saving time. "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
||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" UTC+1 time, actually use another time zone (UTC+2 in particular – there are no "physical" UTC+1 areas that employ UTC). Conversely, there are European areas that have gone for UTC+1, even though their "physical" time zone is UTC (typically), UTC−1 (westernmost "Spain), or UTC+2 (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. Following is a list of such "incongruences":
Historically "Gibraltar maintained UTC+1 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+1 longitudes using other time zones
These areas are located between 7°30′ E and 22°30′ E ("physical" UTC+1)
Areas using UTC+2
- The westernmost parts of the "Bulgarian provinces of "Vidin and "Kyustendil
- The westernmost part of "Romania, including most of the area of the counties of "Caraș-Severin, "Timiș (capital "Timișoara), "Arad, and "Bihor, as well as the westernmost tips of the counties of "Mehedinți and "Satu Mare
- The westernmost tip of "Ukraine, near the border with "Hungary and "Slovakia, at the Ukrainian "Transcarpathian Oblast ("Zakarpattia Oblast), essentially comprising the city of "Uzhhorod and its environs. (Although CET is used as local, non-official time in "Transcarpathia).
- Western "Lithuania, including the cities of "Klaipėda, "Tauragė, and "Telšiai
- Western "Latvia, including the cities of "Liepāja and "Ventspils
- The westernmost parts of the "Estonian islands of "Saaremaa and "Hiiumaa, including the capital of the "Saare County, "Kuressaare
- The southwestern coast of "Finland, including the city of "Turku; also the "Åland islands (of Finnish jurisdiction) – the "Åland islands are the westernmost locale applying EET in the whole of Europe
- The northwesternmost part of "Finland, including "Kilpisjärvi and "Kaaresuvanto.
- The "Russian exclave of "Kaliningrad Oblast, excluding however its easternmost slice (the city of "Nesterov is east of 22°30′ E, but that of "Krasnoznamensk is not)
Areas located outside UTC+1 longitudes using UTC+1 time
These areas are located west of 7°30′ E or east of 22°30′ E (outside "physical" UTC+1)
Areas between 22°30′ W and 7°30′ W ("physical" UTC−1)
- The westernmost part of mainland "Spain ("Galicia, e.g. the city of "A Coruña); "Cape Finisterre and nearby points in Galicia, at 9°18′ W, are the westernmost places where CET is applied.
- The Norwegian island of "Jan Mayen lies entirely within this area and extends nearly as far west as Cape Finisterre, with its western tip at 9°5′ W and its eastern tip at 7°56′ W.
Areas between 7°30′ W and 7°30′ E ("physical" UTC)
- "France, except for the absolutely easternmost part, in "Alsace, incl. "Strasbourg and parts of "Alpes-Maritimes, and except for "Corsica
- The very westernmost part of "Germany, incl. the cities of "Saarbrücken, "Düsseldorf, "Cologne, "Aachen, and "Trier
- The absolutely westernmost part of "Italy, incl. the cities of "Aosta in "Aosta Valley and "Cuneo in "Piedmont
- The westernmost part of "Norway, incl. the cities of "Bergen and "Stavanger
- Mainland "Spain, except for the westernmost part (see above), "Canary Islands, and the African cities of "Ceuta and "Melilla. However, pending legislation is underway to return Spain to Greenwich Mean Time. 
- The part of "Switzerland west of "Bern (inclusive), also incl. cities such as "Geneva, "Lausanne, and "Fribourg
Areas between 22°30′ E and 37°30' E ("physical" UTC+2)
- The easternmost part of the "Republic of Macedonia, including the city of "Strumica
- The easternmost part of "Serbia, in the "Pirot District, including the city of "Pirot, and small easternmost parts of "Bor District.
- The easternmost tips of "Hungary and "Slovakia, bordering to the north and south respectively the Ukrainian "Transcarpathian Oblast ("Zakarpattia Oblast), a bit to the east of "Vásárosnamény, "Hungary – "Uzhhorod, "Ukraine (both at 22°18′ E) line
- The easternmost part of "Poland, including the cities of "Lublin and "Białystok
- The northeast of "Sweden, in the "Norrbotten province, including the cities of "Kalix and "Haparanda
Map of "Petsamo area
in northern Finland/Soviet Union/Russia. The green area is the Finnish part of the "Rybachi peninsula
(Kalastajasaarento) which was ceded to the Soviet Union after the "Winter War
. The Red area is the "Jäniskoski
-Niskakoski area ceded to the USSR in 1947.
- The northeast of "Norway, lying north of "Finland, roughly coinciding with the county of "Finnmark; for instance "Vadsø, the capital of "Finnmark, has a longitude of 29°49′ E. Actually, the easternmost town in "Norway, "Vardø, lies at 30°51′ E, which is so far east, so as to be east even of the central meridian of EET (UTC+2), i.e. east of "Istanbul and "Alexandria. The sun reaches its highest point at 10:56 (when not DST).
The "Norwegian–"Russian border (incl. the border control at "Storskog) is the only place where CET (UTC+1/+2) borders Moscow time (UTC+3), resulting in a two hours time change (or one hour in summer) for the passenger crossing that border.
- More so, there exists a "tri-zone" point (where UTC+1, UTC+2, and UTC+3 meet) at the "Norway–"Finland–"Russia tripoint near "Muotkavaara. Mental experiment when looking at this map: Go to the westernmost point of the red area (the Jäniskoski-Niskakoski area); this belongs to Russian jurisdiction, hence the time there is UTC+3. Then, take a northeastern (NE) direction (that is an eastwards direction); you will soon be crossing into "Finnish territory, thus moving to the UTC+2 time zone. Continuing in that direction, you will eventually reach the "Finland–"Norway border and enter "Norway, thus passing into the UTC+1 time zone. So, moving in a (north)easterly direction, you will be moving from UTC+3 to UTC+2 to UTC+1.