Autumn Equinox 2024 Date And Time. Find out more about equinoxes and. This sunday, the autumnal equinox is upon us, and with it, a shift to shorter days, longer nights and the astronomical start of fall in the northern.

Falling on september 22, 2024, this equinox marks the official start of fall in the northern hemisphere. In different time zones, the date of the equinox may differ by a day, so it is important to indicate your exact location.