Winter Solstice 2024 Southern Hemisphere Time. The first day of winter in the northern hemisphere is marked by the winter solstice, which occurs on saturday, december 21, 2024, at 4:21 a.m. Winter solstice takes place on june 20, 2024, at 20:51.

(december 22 in the northern hemisphere, june 22 in the southern hemisphere) longest night of the year and the beginning of winter. The winter solstice marks the year’s longest night and shortest day.