Shortest Day Of 2024 Usa. 21, 2024 and the next winter solstice for the southern hemisphere will occur on june 20, 2024. In 2024 the winter solstice will occur on saturday 21 december at 9.21am gmt.
A december solstice on the 23rd is once in a hundred years. The shortest day of the year, in terms of daylight, is december 21, the winter solstice.