When Does Bst Start 2025. Each year, the clocks go back an hour at 2am on the last sunday of october. Next year, in 2025 the clocks will go forward on sunday, march 30, by an hour and they’ll go back by an hour on sunday 26 october.

British summer time (bst) occurs on the last sunday of march and represents the phenomenon when the clocks go forward in spring by one hour and, in autumn, on the last sunday of october, reverts to greenwich mean time. Plan and schedule events and meetings, share time.