First Day Of Fall 2025 Date And Time Nyc 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. I f you are in the eastern time zone, then fall officially begins at 8:43 a.m., local time.
The autumnal equinox is scheduled to arrive on sunday, sept. In 2025, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.