Fall Equinox 2024 Usa Map. This year it lands on sunday at 8:44 a.m. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.

The 2024 fall equinox can be pinpointed to an exact time on sunday, september 22. Autumn equinox 2024 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,.