March 20 marks 1st day of astronomical spring
The beginning of astronomical spring is on the equinox, which falls on March 20 at 11:33 A.M. EDT. In this video, we explain what an equinox is and why it happens.
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This year the spring equinox occurred at 10:33 a.m. CT Sunday, the first day in 2022 that the sun was above the horizon for all locations on Earth for 12 hours.
Spring gets its official start Tuesday in the Northern Hemisphere. But what does that mean?
