September equinox
—hype
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Schedule updated. Previously Monday, 22 September 2036.
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About this moment
There are 3,656 days until September equinox, on Monday, 22 September 2036.
Sun over the equator again. Harvest in the north.
The September equinox is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year, the September equinox may occur from September 21 to 24.
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Last verified Sep 14, 2026
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