Fall Arrives Monday

Autumn starts September 22. The official time of the Autumnal Equinox, when the geometric center of the Sun’s disk crosses the equator, is 8:29 P.M. Mountain Daylight Time or 9:29 P.M. Central Daylight Time.



Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.