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Winter Solstice

December 20, 2021 3:53 PM
By Bryan Lewis

In 2021, the winter solstice for the Northern Hemisphere happens on December 21 at 15.58 GMT. The longest night of the year is a significant turning point. Astronomical winter begins and the days gradually get longer again.

winter solstice

The winter solstice happens when the sun reaches its most southerly declination so that the North Pole is tilted farthest away from the sun. This gives us the fewest hours of sunlight of the year.