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When Is the First Day of Fall? The Autumnal Equinox in 2024
For example, the equinox occurred on Sept. 21 in 1931 and the year ... are concentrated on the side of the Earth, the sun is directly above the equator. Fall in the Northern Hemisphere begins ...
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Fall is here | Here's a look at the autumn equinox
The autumn equinox will arrive Saturday, Sept. 23 at 2:50 a.m. Eastern in the Northern Hemisphere. Meanwhile, the astronomical season -- the one that starts Saturday -- is based on Earth's orbit ...