When Is Winter 2025 Uk Time. The time change from winter time to daylight savings time will take place in great britain on march 30, 2025 at 1 in the morning. This marks the end of british summer time (bst) and daylight saving, and a return to greenwich mean time (gmt).

The shortest day can occur on december 20, 21, 22,. The winter solstice is the shortest.