Winter Solstice 2024 Date And Time. The winter solstice marks the year’s longest night and shortest day. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.
In 2024 the winter solstice will occur on saturday 21 december at 9.21am gmt. Learn all about the shortest day of the year—and tell us what.