Why is the winter solstice short in days and long in nights?

In the northern hemisphere, the winter solstice has the shortest day and the longest night. This is because the sun shines directly on the Tropic of Capricorn at this time, so the days in the northern hemisphere are short and the nights are long, and it is extremely night in the Arctic Circle and extremely day in the Antarctic Circle. The winter solstice is the 22nd solar term among the 24 solar terms, and the time is usually between 65438+February 2 1 -23 in Gregorian calendar every year.