When Does British Summer Time Start 2024. British summer time is getting closer by the day. Each year in the uk, clocks go forward an hour in the march to british summer time (bst) and then back an hour in october to greenwich mean time (gmt).
British summer time, also known as bst, starts on the last sunday of march and ends on the last sunday of october, which means that it lasts for most of the year. Clocks go forward one hour.