First Day Of Fall 2024 Calendar Usa. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m. The first day of fall this year, also known as the autumnal equinox is sunday, sept.
The 2024 autumnal equinox will occur on sunday, september 22, at 8:44 am eastern time, marking the official transition from summer to fall in the northern hemisphere. The date varies slightly year to year, but it is usually september 22 or.