When Is The 1st Day Of Winter 2024 Uk. As well as marking the shortest day of the year, the winter solstice marks the first day of winter in the astronomical calendar, whilst in the meteorological calendar, we are already three. The winter solstice is the “shortest day” of the year, meaning the least amount of sunlight.

This year, the solstice happens at 3:27 a.m. The next winter solstice in the southern hemisphere will occur on june 20, 2024.