This year the Autumnal Equinox, also known as the September, Autumn or Fall Equinox, takes place at 6:03 PM (PDT) on September 22. The sun will appear directly over the equator at that time.
Summer ends.
Autumn begins.

Find out more:
This year the Autumnal Equinox, also known as the September, Autumn or Fall Equinox, takes place at 6:03 PM (PDT) on September 22. The sun will appear directly over the equator at that time.
Summer ends.
Autumn begins.
Find out more: