Fall Equinox 2024 Southern Hemisphere. This refers to the northern hemisphere of the earth. Here's everything you should know about the fall equinox—plus our favorite fall facts, folklore, photos, and more!
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. This page gives the day length in hours, minutes and seconds on equinox day, including previous and next day.