In 2016, first day of fall arrives on Thursday, September 22. In the Northern Hemisphere, the fall equinox marks the first day of fall (autumn) in what we call astronomical seasons.
See local times for September Equinox 2016 worldwide.
Equinoxes are opposite on either side of the equator, so the autumnal (fall) equinox in the Northern Hemisphere is the spring (vernal) equinox in the Southern Hemisphere and vice versa. See more at TimeandDate.com.
Find the dates and times for the four seasons (based on Eastern Time) on Almanac.com.
Of interest, International Business Times shares 11 sayings about autumn, bringing in the new season.