When Is September Equinox 2024 Usa

When Is September Equinox 2024 Usa. The equinox is the time of year when the sun is at its zenith at the earth's equator, and the earth is at right angles (taking the poles) to the sun's rays. Equinoxes and solstices are two of the most important celestial events on earth.

Here’s everything you should know about the fall. This year, autumn officially begins at 8:43 a.m.