Clocks Change 2024 Dates Uk. On 27 october clocks will turn back by one hour, as we change from british summer time (bst) to greenwich mean time (gmt). In the uk the clocks go forward 1 hour at 1am on the last sunday in march, and back 1 hour at 2am on the last sunday in october.

For the start of dst in 2025. They went forward an hour at 1am on the 31 march of this year bringing us into bst,.