In some places, the winter of solstice is divided into big winter and small winter. What do you mean?

In some places, there is this custom on the solstice of winter. Small winter is the day before solstice winter, and big winter is the day before solstice winter.

The winter solstice is celebrated on February 2 1, 22 or 23 of the Gregorian calendar every year. The solstice in winter is the limit of the sun's southward travel. On this day, the sun shines directly on the tropic of Capricorn, and the sun is most inclined to the northern hemisphere.

Therefore, the winter solstice is the lowest day of the sun height in all parts of the northern hemisphere, and it is also the shortest day of the year in all parts of the northern hemisphere. The farther north, the shorter the day is. North of the Arctic Circle, the sun is below the horizon all day, which is the widest day of the year in the northern hemisphere.

Extended data:

In winter solstice, although the sun is low and the days are short, the temperature in winter solstice is not the lowest in meteorology. In fact, because there is still "accumulated heat" on the surface, it is usually not very cold before the winter solstice, and the real cold is after the winter solstice.

Because of the huge climate difference in China, this climatic winter is obviously late for most parts of China. The winter solstice marks the beginning of the cold season, and people begin to count to nine to calculate the cold weather (folk proverb: "The summer solstice is the third watch, and the winter solstice is the ninth watch").