What Dates Are Winter 2024. When do the four seasons start in 2024—for spring, summer, fall, and winter? The solstice occurs at the same time everywhere on earth, this year it happens dec.
It’s the shortest day and longest night in the northern hemisphere. This year the winter will start on thursday december 21, 2023 (day of the winter solstice) and will end on tuesday march 19, 2024 with the spring equinox.