First Day Of Winter 2025 Eastern Time. Daylight savings time change, dst 2025 us eastern time, current local time, current time zone, time change 2025, clock time and (dst) summer and winter symbols update live So, what is the winter solstice and why does it happen?

Winter begins with the winter solstice, saturday, december 21, 2024, 4:21 a.m. The first day of winter (winter solstice or december solstice) is when the sun is in its most southern position directly over the tropic of capricorn.