Autumn Equinox 2024 Time. Our long, hot summer finally comes to an end on sunday at 8:48 a.m. The specific time, in the case of this year 8:43 a.m.

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, moving from the northern hemisphere to the southern. The fall equinox is not on the same day each year, though it always falls between september.