2025 Solstice Time
2025 Solstice Time. Winter solstice 2025 in the northern hemisphere will be on 21 december 2025, saturday. The 2025 winter solstice — the precise moment when the sun appears farthest south in the sky — is at 4:20 a.m.
So, what is the winter solstice, and why does it happen? Edt (2051 gmt), marking the longest day in the northern hemisphere.