Wishing you all a very happy December Solstice! December solstice 2020 arrives on December 21 at 10:02 UTC. Solstices are opposite on either side of the equator, so the winter solstice in the Northern Hemisphere is the summer solstice in the Southern Hemisphere and vice versa. Spread light and warmth to your loved ones by wishing them Happy December Solstice. Stay Tuned!