Central European Summer Time (CEST, UTC+02:00), sometimes referred to as Central European Daylight Time (CEDT),^[1] is the standard clock time observed during the period of summer daylight-saving in those European countries which observe Central European Time (CET; UTC+01:00) 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.^[2]

Other names which have been applied to Central European Summer Time are Middle European Summer Time (MEST),^[3] Central European Daylight Saving Time (CEDT),^[4] and Bravo Time (after the second letter of the NATO phonetic alphabet).^[5]

Since 1996, European Summer Time has been observed between 01:00 UTC (02:00 CET and 03:00 CEST) on the last Sunday of March, and 01:00 UTC on the last Sunday of October; previously the rules were not uniform across the European Union.^[6]

There were proposals to abandon summer time in Europe from 2021, possibly by moving winter time up by an hour and keeping that time through the year.^[7]

The following countries and territories regularly use Central European Summer Time:^[8]

• Albania, since 1974
• Andorra, since 1985
• Austria, since 1980
• Belgium, since 1980
• Bosnia and Herzegovina, since 1983 when part of Yugoslavia
• Croatia, since 1983 when part of Yugoslavia
• Czech Republic, since 1979 when part of Czechoslovakia
• Denmark (metropolitan), since 1980
• France (metropolitan), since 1976
• Germany, since 1980
• Gibraltar, since 1982
• Hungary, since 1980
• Italy, since 1968
• Kosovo, since 1983 when part of Yugoslavia
• Liechtenstein, since 1981
• Luxembourg, since 1981
• Malta, since 1974
• Monaco, since 1976
• Montenegro, since 1983 when part of Yugoslavia
• Netherlands, since 1977
• North Macedonia, since 1983 when part of Yugoslavia
• Norway, since 1980
• Poland, since 1977
• San Marino, since 1966
• Serbia, since 1983 when part of Yugoslavia
• Slovakia, since 1979 when part of Czechoslovakia
• Slovenia, since 1983 when part of Yugoslavia
• Spain, since 1974 (except Canary Islands, which instead apply Western European Summer Time)
• Sweden, since 1980
• Switzerland, since 1981
• Vatican City, since 1966

The following countries have also used Central European Summer Time in the past:

• Libya, 1951–1959, 1982–1989, 1996–1997, 2012–2013
• Lithuania, 1998–1999
• Portugal, 1993–1995
• Tunisia, 2005–2008

• European Summer Time
• Time zone