what does fall begin?
Home > Holiday and Occasions > Fall - Autumn > When is the first day of Fall - Autumn 2017? When is the first day of fall 2017? In 2017, fall begins on September 22rd (at 20:02 UTC) for countries in the Northern Hemisphere. The date may be different for you based on what time zone you live in. This chart reflects the UTC time zone. Note: Equinoxes are opposite on each side of the equator.