The clocks will go back across the UK on Sunday 25 October 2026. At 2am, they will be turned back to 1am, adding an extra hour to the night as the country moves from British Summer Time to Greenwich Mean Time.
The date is confirmed in the official GOV.UK timetable. The autumn clock change takes place on the last Sunday in October. The 2026 date follows that established rule rather than a new government decision.
From 2am to 1am — not the other way round
The change will happen overnight between Saturday 24 and Sunday 25 October. When the clocks reach 2am, they will go back by one hour, meaning the hour between 1am and 2am will occur twice. That is the key detail for anyone working, travelling or arranging to meet at a particular time that night.
British Summer Time (BST) will end, and Greenwich Mean Time (GMT) will take its place — the UK’s winter time. For clocks that need adjusting manually, the rule is straightforward: in October, turn them back one hour.
