Fall Equinox 2025 Date. I f you are in the eastern time zone, then fall officially begins at 8:43 a.m., local time. Autumn 2025 starts on sunday, september 22nd in the northern hemisphere, with daylight time shortening and the leaves begining to fall with the changing tilt of the earth's axis.
America the exact moment of the autumnal equinox in 2025 is 22. When is the first day of fall 2025?