Winter Solstice 2024 Southern Hemisphere Dates. In the northern hemisphere, the 2024 winter solstice will occur on december 21 at 09:20 gmt (december 21, 04:20 a.m. In the southern hemisphere, it will occur on june.
The winter solstice marks the year’s longest night and shortest day. There are two times a year when earth’s axis neither tilts towards or away from the sun.