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Autumnal Equinox Arrives: Equal Daylight and Darkness
9/23/2025
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Equinox Signals Autumn
- The autumnal equinox occurs on September 22, 2025, at 2:19 p.m. EDT, marking fall in the Northern Hemisphere.
- Daylight and darkness are nearly equal as the Earth's axis is not tilted.
- The term equinox comes from Latin, meaning "equal night."
- After the equinox, days shorten toward the December 21, 2025 winter solstice. In the Southern Hemisphere, spring begins.
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