Autumn Equinox
Autumn has caught us in our summer wear. –Philip Larkin, British poet (1922–86) WHEN IS THE AUTUMNAL EQUINOX? In 2019, the autumnal equinox occurs on Monday, September 23, at 3:50 A.M. EDT. The equinox occurs at the same moment worldwide; adjust for your local time zone. Year Autumnal Equinox (Northern Hemisphere) 2019 Monday, September 23 2020 Tuesday, September 22 2021 Wednesday, September 22 2022 Thursday, September 22 WHAT IS THE AUTUMNAL EQUINOX? Autumn days come quickly, like the running of a hound on the moor. –Irish proverb The autumnal equinox—also called the September or fall equinox—is the astronomical start of fall in the Northern Hemisphere and of spring in the Southern Hemisphere. What is an Equinox? The word “equinox” comes from Latin aequus, meaning “equal,” and nox, “night.” On the equinox, day and night are roughly equal in terms of length. During the equinox, the Sun crosses what we call the “celestial equator”—a...