British Summer Time

British Summer Time (BST) is the UK name for Daylight Saving Time (DST)

BST starts on 28 March 2021

Remember the Time Change Rule: Spring Forward, Fall Back

In the spring clocks are turned forward one hour to GMT+1.

In the autumn (fall) clock are turned back back one hour to GMT. This gives an extra hour of light at the start of the day in winter.

Convert Local Time to London

GMT Time converter, compare London and Local Time. Enter your location or any place, city, location for more comparisons.

Check here for BST dates since 1950 until 2021.

  • Daylight Saving Time maximises the benefit of daylight at latitudes where summer days are long. The benefit tapers with latitude as day-length gets more extreme near the poles.
  • BST was introduced in the UK in 1916. It has a fascinating history.
  • Offsets or time differences are generally written as UTC/GMT plus or minus a number of hours.

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