When Does Winter Start 2025 Uk Dates. At which point, daylight hours will begin to increase. By 21 december, the sun will have reached its lowest point in the sky during the day, marking the winter solstice.
With no official definitions of the duration of spring, summer, autumn and winter, how do we know when the british seasons dates begin or end? Ending on 28 (or 29 during a leap year) february.