Autumn Equinox 2024 Time Zone. 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. List of solstice and equinox dates for the current and future years.

Autumnal/fall equinox north of the equator is mirrored south of the equator by the spring equinox. As with the spring equinox this is a point of seasonal.