Autumn Equinox 2024 Time Zone.  — the 2024 fall equinox—also called the autumn equinox—takes place on sunday, september 22, 2024. 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,.

Edt in the northern hemisphere. The autumn equinox happens at the same moment worldwide, so the answer depends on your time zone.