Autumnal Equinox 2026

Name: Autumnal Equinox 2026
Start: 2026-09-23T00:05:00+00:00
End: 2026-09-23T00:05:00+00:00
Location: Worldwide

First Day of Autumn (Northern Hemisphere)

September 23, 2026 at 00:05 (UTC)

The Autumnal Equinox 2026 in the Northern Hemisphere occurs on Wednesday, September 23, at 00:05 UTC. This astronomical event marks the official start of autumn, when the Sun crosses the celestial equator, leading to roughly equal day and night across the globe.

Details

Hemisphere: Northern Hemisphere

Sources

farmersalmanac.com
starwalk.space
britannica.com
timeanddate.com

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