Shortest Day Of Winter 2025. Winter solstice 2025 will occur on december 21, marking the shortest day and longest night of the year. This is the shortest day of the year with the fewest hours of.

In 2025, the winter solstice occurs on saturday, december 21 at 4:20 a.m. The shortest day lasts 7 hours 49 minutes and 42 seconds in london.