First Day Of Winter 2024 Usa Date. The winter solstice, which marks the first day of winter 2024, occurs on saturday, december 21, 2024 at 4:21 a.m. When is the winter solstice?

104 days 0 hours 13 minutes 24 seconds. In the usa and other parts of the northern hemisphere the winter solstice is traditionally the first day of winter.