First Day of Fall

When is the first day of fall? The autumnal equinox—the September equinox or the fall equinox—arrives on Saturday, September 23. Not only do temperatures drop, but plant life slows down and so do we. Read about the signs of fall and how we mark the equinox and the first day of fall.
When Is the First Day of Fall? The Autumnal Equinox?
The fall equinox and the first day of autumn arrives on Saturday, September 23, 2023, at 02:50 A.M. EDT in the Northern Hemisphere. The equinox occurs at the same moment worldwide.