Central European Summer Time

Time zones of Europe in relation to UTC:
blue Western European Time (UTC+0)
Western European Summer Time (UTC+1)
light blue Western European Time (UTC+0)
red Central European Time (UTC+1)
Central European Summer Time (UTC+2)
yellow Eastern European Time (UTC+2)
Eastern European Summer Time (UTC+3)
orange Kaliningrad Time (UTC+3)
green Moscow Time (UTC+4)
Light colours indicate countries that do not observe summer time.

Central European Summer Time (sometimes called Central European Daylight Time) is the name for a time zone. It is a daylight saving time.[1] Some of the countries that have Central European Time shift their clocks forward one hour, during the summer months and shift it one hour backwards during winter months.[2]

A research station called Troll in Antarctica uses this time zone in the winter, but uses Greenwich Mean Time in the summer.[3]

The part of Europe using this time zone has had many changes from Central European Summer Time. It is because the Sun is not matching with the time in their areas. They have also stopped using the timezone multiple times.[4]


  1. "CEST time zone — Central European Summer Time". 24timezones.com. Retrieved 2022-12-31.
  2. Slater, Jack (2022-08-01). "What is CEST and what's the difference to time in the UK?". Metro. Retrieved 2022-12-31.
  3. "Central European Summer Time – CEST Time Zone". www.timeanddate.com. Retrieved 2022-12-31.
  4. Tidey, Alice (2022-10-28). "When will the EU end seasonal clock changes? Only time will tell". euronews. Retrieved 2022-12-31.