Autumnal Equinox 2026

First Day of Fall (Northern Hemisphere)

September 22, 2026 at 20:05 (America/New_York)

The Autumnal Equinox, marking the first day of astronomical fall in the Northern Hemisphere, will occur on Tuesday, September 22, 2026, at 8:05 PM EDT (00:05 UTC on September 23). On this day, the Sun crosses the celestial equator, resulting in nearly equal day and night across the globe.

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