About Autumnal Equinox
The sun rises exactly in the east and sets exactly in the west on this day, making day and night equal in length. From this day forward, the sun crosses over the equator to the Southern Hemisphere, meaning it rises and sets in the Southern Hemisphere, meaning that the days will begin to become shorter than nights in the Northern Hemisphere, heralding the arrival of Autumn.
Find out moreSimilar Observances
Winter Solstice
The arrival of the shortest day of the year has been celebrated since the dawn of mankind.
Read More
Read More
Other Observances on September 22nd 2021
Car Free Day
Many large cities and towns around the world participate in this event designed to show people the benefits of having roads from free from traffic.
Read More
Read More
AKC Responsible Dog Ownership Day
The American Kennel Club holds these days to educate first-time dog owners about dog ownership.
Read More
Read More