When Does Fall Start 2024 Usa Dates. This day is also known as the autumnal equinox. This year the autumn will start on sunday september 22, 2024 (day of the fall equinox) and will end on saturday december 21, 2024 with the winter solstice.

Fall will last until december 22, which is when winter starts. I f you are in the eastern time zone, then fall officially begins at 8:43 a.m., local time.