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In 2022, the autumnal equinox—also called the September equinox or fall equinox—arrives on Thursday, September 22. This day marks the moment when the sun is directly above the equator while moving from north to south, and also the astronomical beginning of Fall in the Northern Hemisphere.
As the seasons go from Summer to Fall, after the Autumnal Equinox the days become shorter and nights grow longer, as the sun rises at a later time and sets earlier during the autumnal months.
