What's the difference between winter solstice and early winter?

The differences between winter solstice and beginning of winter are: different meanings, different dates, different climates, different phenological phenomena and different customs.

1, meaning different.

The solstice in winter means the longest shadow. On this day, the northern hemisphere has the shortest half-day and the longest night, and it began to enter the cold weather. Beginning of winter said that beginning of winter means that crops should be harvested after harvest.

2. Different dates

During the winter solstice, the meridian of the sun reaches 270, and festivals are held every year on 65438+February 2 1-23 in Gregorian calendar. Bucket handle, beginning of winter, points to the northwest, and the longitude of the sun reaches 225, which intersects with the Gregorian calendar165438+1October 7-8 every year.

The climate is different.

On the day of winter solstice, although the sun is low and the days are short, the temperature of winter solstice is not the lowest in meteorology. In fact, due to the "accumulated heat" on the surface, it is usually not very cold before the winter solstice, and the real cold is after the winter solstice. In early winter, the sun has reached the longitude of 225 degrees, the sunshine time will continue to be shortened, the height of the sun will continue to decrease at noon, and the amount of solar radiation obtained by the northern hemisphere will be less and less, but there is still some energy due to the heat stored on the surface in the second half of this year.

4. Different phenological phenomena

Some ancient Chinese literary works divide the winter solstice into three stages: one stage is earthworm knot; Second, wait for the elk horn to solve; Wait for the spring to move. Some ancient literary works in China divided beginning of winter into three stages: the first stage was when the water began to freeze; The second waiting place began to freeze; When a pheasant enters the flood, it must be a stork.

5. Different customs

The winter customs of solstice vary in content or details due to different regions. In the south of China, there are customs of offering sacrifices to ancestors and enjoying a big meal on the winter solstice. In northern China, it is a custom to eat jiaozi from winter to Sunday every year. Beginning of winter is also one of the "four seasons and eight festivals" in ancient society, and it is a very important festival. In some parts of China, there are customs such as ancestor worship and drinking.

Refer to the above content: Baidu Encyclopedia-beginning of winter