UK clocks go back to GMT on October 25
Britain switches from British Summer Time to Greenwich Mean Time, giving an extra hour in bed but darker evenings.
At a glance
- Clocks move back one hour at 2am on October 25, returning UK to GMT
- Change provides an extra hour in bed but results in darker evenings
- Parliament's Great Clock will undergo maintenance during the transition
- Clock dial lights will be off from 6pm Saturday until 2am Sunday
The United Kingdom will shift to Greenwich Mean Time on Sunday, October 25, when clocks go back by one hour at 2am. The change marks the end of British Summer Time and will provide an additional hour of sleep while bringing more daylight to mornings and darker evenings.
Parliament's clock mechanics will perform maintenance on the Great Clock in Elizabeth Tower during the transition. From 6pm on Saturday, the dial lights will be switched off and the clock hands will not display the correct time until the official changeover at 2am on Sunday.
Why it matters
The twice-yearly clock changes affect daily routines, work schedules and daylight hours across the UK, with the autumn shift marking the return to standard winter time.
Original reporting
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