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UK on BST - not GMT - in the Summer

The UK is not on Greenwich Mean Time (GMT) all year. During Daylight Saving Time (DST) the correct time zone is British Summer Time (BST).

Illustration image
The Royal Observatory in Greenwich, London
The "home" of GMT is the Royal Observatory in Greenwich, London

The UK starts DST in March and ends in October every year. However, a lot of people aren't aware of this, which leads to mistakes when they use timeanddate.com services.

Selecting UTC/GMT when using our calculators and converters for the UK will lead to incorrect results during the summer months when DST in use.

We reccomend always using the city/location, e.g. London, as we always account for DST changes in services like the:

BST Only in the UK

BST does not apply to British Overseas Territories, like the British Virgin Islands and Gibraltar.

The only European country which stays on GMT all year round is Iceland.

GMT is the standard time zone in Ireland and in most of the United Kingdom, including England, Wales, Scotland, and Northern Ireland. However, these countries all use DST in the summer, and the time zone during the DST period is different.

GMT Might be Abandoned

Proposals have been made several times to change the UK’s standard time zone to Central European Time (CET). The argument is that such a change would improve business and transport links with other countries and might lower the number of road traffic accidents.

Adopting Central European Time (CET / CEST) in the United Kingdom would result in later sunrises during winter, particularly affecting people in the north of England and Scotland.

Topics: Time Zone, Daylight Saving Time, UK, Timekeeping

Current time in London


Saturday, December 20, 2014


UTC & GMT Library

  1. GMT & UTC – Same Difference?
  2. GMT or BST in the UK?
  3. Why UTC – not CUT?

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