Start Of Winter 2024 Date. See the exact dates and times for each season in eastern time, adjusted for daylight and standard time. Winter in the united states starts on december 21 or 22 and ends on march 20 or 21 in 2024.

When is the first day of winter? Winter solstice 2024 (beginning of astronomical winter) on the day of the winter (december) solstice, the sun passes through the southernmost point of the ecliptic, that.