For six months now, the days have grown shorter and the nights have grown longer in the Northern Hemisphere — but that’s about to reverse itself.
Winter solstice, the shortest day of 2018, is Friday, December 21.
The solstice this year will be extra special because it will be followed the next day by a full moon known as the Cold Moon, and you might be able to see a meteor shower to boot.
If you want to be super-precise in your observations, the exact time of the 2018 winter solstice will be 22:23 Universal Time. That would be 5:23 p.m. ET (for parts of Canada, the United States and Latin America). The website EarthSky has a handy conversion website for your time zone. You might also try to the conversion chart at WorldTimeBuddy.