First Day Of Winter 2024 Date And Time. In 2024, the winter solstice is happening on saturday, dec. Fall starts at the moment when the sun is directly over the equator, going from north to south:

The winter solstice — the exact moment when the sun appears farthest south in the sky — happens at 4:20 a.m. In 2022, the winter solstice happens at 4:48 p.m.