Winter 2024 Calendar. When is winter in 2024? The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices.

Winter 2024 starts on saturday, december 21st in the northern hemisphere, with the first day of winter being the shortest daylight day of the year with the earth’s axis having reached its furthest tilt away from the sun and begins to change directiion back. This year, astronomical winter begins on 21 december 2022 and ends on 20 march 2023.