When Is The 1st Day Of Winter 2024. The winter solstice, which marks the first day of winter 2024, occurs on saturday, december 21, 2024 at 4:21 a.m. Summer begins with the summer solstice, thursday, june 20, 2024, 4:51 p.m.
Winter solstice takes place on december 21, 2024, in the northern hemisphere and on june 20, 2024, in the southern hemisphere. Fall begins with the autumnal equinox, sunday, september 22,.