Which month's shadow blocks the sun the most?

Winter solstice is the 22nd solar term in a year. In winter solstice, the daytime is the shortest and the night is the longest. When the sun directly hits the tropic of Capricorn, it is the winter solstice in the northern hemisphere, that is, around 65438+February 22 in winter, and the elevation angle of the sun in the northern hemisphere is the smallest and the shadow is the longest.