By how much do UK clocks go forward?

Clocks move forward by one hour when the UK switches from GMT to BST.

When do clocks go back in the UK?

The UK usually moves clocks back on the last Sunday in October.

Use the UK time-change dates page and always verify official guidance close to transition dates.

The UK usually moves clocks forward on the last Sunday in March.

UK clocks usually go forward on the last Sunday in March. The next UK spring-forward change is Sunday, 29 March 2026 at 03:00 (local time).

In spring, clocks move forward one hour and the UK enters BST.
In autumn, clocks move back one hour and the UK returns to GMT.
The practical pattern is often described as last Sunday in March and last Sunday in October.
Always confirm exact timings for the relevant year before scheduling events.