First Day Of Winter 2024. Will it be a bad winter?  — the winter solstice — the exact moment when the sun appears farthest south in the sky — happens at 4:20 a.m.

 — this year the winter will start on thursday december 21, 2023 (day of the winter solstice) and will end on tuesday march 19, 2024 with the spring equinox. The first day of fall this year, also known as the autumnal equinox is sunday, sept.