when do clocks.go back

Clocks go back by one hour on the last Sunday of October, marking the end of British Summer Time (BST) and a return to Greenwich Mean Time (GMT). In 2025, this change will happen at 2:00 AM on Sunday, October 26. This shift gives an extra hour of sleep but also means earlier sunsets and darker evenings as daylight moves from evening to morning. The clocks will then spring forward again in late March 2026, following the "spring forward, fall back" rule for daylight saving time changes. This tradition has been observed for over a century in the UK and other countries that use daylight saving time.