In the UK, the clocks go back 1 hour at 2:00 AM on the last Sunday in October. For 2025, this will occur on Sunday, October 26, 2025. This marks the end of British Summer Time (BST) and the return to Greenwich Mean Time (GMT). The clocks are turned back one hour, giving an extra hour of sleep or activity. This adjustment means that evenings get darker earlier, but mornings have more daylight. The transition to daylight saving time (clocks going forward) will happen again on March 29, 2026, at 1:00 AM GMT.

In Central Europe, including Germany, the clocks go back from Daylight Saving Time (CEST) to Central European Time (CET) also on October 26, 2025, but the change happens at 3:00 AM, moving back to 2:00 AM, ending summer time and beginning winter time.

A useful mnemonic to remember the direction of the change is: "spring forward, fall back."