When Is The First Day Of Winter 2024. Winter solstice takes place on december 21, 2024, in the northern hemisphere and on june 20, 2024, in the southern hemisphere. Yep, it only lasts a brief moment, not a whole day, as many believe!.

Summer begins with the summer solstice, thursday, june 20, 2024, 4:51 p.m. The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices.