The winter solstice is one of the 24 solar terms of the lunar calendar. It is also a folk festival in China, which is popular all over China. The time is Gregorian calendar1February 22nd. This day has the shortest day, and then the day is long and the night is short, so there is a saying that the winter solstice is sunny. The winter solstice means the arrival of winter, which has the shortest days and the longest nights.

About the winter solstice night, it seems that different places have different habits and have different opinions:

Statement 1: The night of the winter solstice, because the winter solstice is sometimes in the morning (usually around 2 pm), then the night of the winter solstice is of course the night of the winter solstice.

Saying 2: The night of the winter solstice is the night before the winter solstice, just like Christmas, and Christmas Eve is the night of the 24th. And many old people say that they have been living the night before the winter solstice.

Extended data:

The winter solstice is the 22nd solar term of the "twenty-four solar terms", with the solar meridian reaching 270 degrees, and it is celebrated every year on Gregorian calendar1February 2 1-23. The winter solstice is the extreme point where the direct sunlight travels southward. On the winter solstice, the sun shines directly on the Tropic of Capricorn, and the sun is the most inclined to the northern hemisphere, with the smallest sun elevation angle. It is the shortest day and the longest night in all parts of the northern hemisphere. The winter solstice is also a turning point for the direct sunlight to return to the north. After this day, it will go back, and the direct sunlight will start to move northward from the Tropic of Capricorn (23 26' s), and the daylight in the northern hemisphere (China is located in the northern hemisphere) will increase day by day.

On the winter solstice, although the sun is low and the day is short, the temperature of the 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 great difference in climate in different parts of China, this kind of winter with climatic significance is obviously late for most parts of China. The winter solstice marks the beginning of the cold season, and the people begin to count nine to calculate the cold weather (folk proverb: "The summer solstice is three Geng, and the winter solstice is nine).

References:

Baidu encyclopedia-winter solstice night