Fall Equinox 2024 Dates

Fall Equinox 2024 Dates. When do the four seasons start in 2024—for spring, summer, fall, and winter? If you want to be extra specific and put it on your calendar, then mark it for 5:44 a.m.

On that day, the autumnal equinox will occur, marking the beginning of fall. 22, in the united states and the rest of the northern hemisphere, because that’s the date.