According to the astronomical definition, winter will officially begin in the Northern Hemisphere on Dec. 21, 2022, at 1:47 p.m.: the shortest day of the year, known as the winter solstice. The weeks leading up to the winter solstice can feel long as days grow shorter and temperatures drop. But it's also traditionally been a time of renewal and celebration – little wonder that so many cultures mark major holidays just around this time.

It’s a big astronomical day. Saturday is summer solstice. Summer solstice is the official start of summer in the northern half of the globe. A…