The First Day Of Fall 2024. I f you are in the eastern time zone, then fall officially begins at 8:43 a.m., local time. First day of fall in 2024 is on sunday, the 22nd of september (22/9/2024).

The first day of fall is sunday, september 22, 2024—the same day as the autumn equinox—in the northern hemisphere. But again, this is only for the northern hemisphere, since the southern hemisphere experiences the reverse, and this.