The solstice happens at the same instant for all of us, everywhere on Earth. In 2020, the December solstice comes on December 21 at 4:02 a.m. CST. That’s on December 21 at 10:02 Universal Time (UTC). It’s when the sun on our sky’s dome reaches its farthest southward point for the year. At this solstice, the Northern Hemisphere has its shortest day and longest night of the year.
