When Is Fall 2025 Start. Graded coursework (including but not limited to tests, exams, quizzes) is not permitted during concentrated study period. In 2025, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.
I f you are in the eastern time zone, then fall officially begins at 8:43 a.m., local time. 22 with the autumnal equinox.