The winter solstice, also known as the Winter Festival, the Sub-year-old Festival and the Long Day Festival, has both natural and humanistic connotations. It is not only an important solar term among the 24 solar terms, but also a traditional folk festival in China. The finger of the bucket is the winter solstice, that is, the solar meridian reaches 27 degrees, and the festival is on December 21-23 of the Gregorian calendar.

the winter solstice is one of the eight festivals of the year. In ancient times, there was a custom of worshipping gods and ancestors on the eight festivals. The winter solstice is regarded as a big holiday in winter, and there is a folk saying that the winter solstice is as big as a year, so the ancients called it "sub-year" or "off-year".

In some coastal areas of southern China, the traditional custom of ancestor worship on the winter solstice is still continued. In some areas of northern China, it is a custom to eat jiaozi on the winter solstice every year.

Extended information:

The winter solstice is the shortest day in a year. After the winter solstice, the direct point of the sun gradually moved to the north, and the days in the northern hemisphere gradually became longer and the nights gradually became shorter. Therefore, there is a saying, "After eating the winter solstice noodles, the day is longer."

In addition, the winter solstice begins to count nine, and the winter solstice becomes the first day of counting nine. As for "Counting Nine", a folk song goes like this: "If you don't do it in September and September, you will walk on the ice in March and April, and if you look at willows along the river in May and June, the river will open in July and September, and the geese will come in August and September, and the cattle will walk everywhere in September and September."

Reference: Baidu Encyclopedia-Winter Solstice