Fall foliage at sunrise on the Blue Ridge Parkway near Asheville, North Carolina. The September Equinox 2025 arrives Sept. 22 at 2:19 p.m. EDT, marking autumn in the north and spring in the south.
Day and night will share nearly equal hours on Monday as the world experiences the autumnal equinox, the astronomical event that signals the start of fall in the Northern Hemisphere and spring south ...