When Is The 1st Day Of Fall 2024 Date. In 2024, the fall equinox will be sunday, september 22, according to almanac.com. In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m.

The next september 24 equinox won’t come until 2303. The season change dates are based on the spring and fall equinoxes as well as the summer and winter solstices.