Western European Summer Time

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BST redirects here, for the Bangladeshi time zone, see Bangladesh Standard 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.

Western European Summer Time (WEST) is a summer daylight saving time scheme, 1 hour ahead of Coordinated Universal Time. It is used in the following places:

Western European Summer Time is also known by other names:

  • British Summer Time (BST) in the United Kingdom.
  • Irish Standard Time (IST)[1] (Am Caighdeánach na hÉireann (ACÉ)[2]) in Ireland. This is sometimes called Irish Summer Time (Am Samhraidh na hÉireann).

The scheme runs from the last Sunday in March to the last Sunday in October each year. At both the start and end of the schemes, clock changes take place at 01:00 UTC. During the winter, Greenwich Mean Time (UTC+0) is used.

References[change | edit source]