How long will beginning of winter be in 2023?

Beginning of winter, the 19th of the 24 solar terms, is also the beginning of winter. Bucket handle points to the northwest, and the longitude of the sun reaches 225. It is also the beginning of the festival between Gregorian calendar165438+1October 7-8 every year. When everything is collected in winter, beginning of winter means that life begins to be closed, everything enters a state of recuperation, and its climate changes from dry autumn to rainy and cold winter.

The commonly used methods of season division mainly include "solar terms method" and "temperature method". China traditionally takes the "beginning of winter" with "twenty-four solar terms" as the beginning of winter; The winter divided by "solar terms method" means that everything is in a state of recuperation, and the "temperature method" divides beginning of winter into seasons with the daily average temperature falling steadily below 10℃ for five consecutive days. Winter divided by temperature means cold weather.

Historical origin

Beginning of winter is the first solar term in winter, representing the beginning of winter and the beginning of March. Beginning of winter, beginning of spring, Changxia and beginning of autumn are collectively called "four stands", namely, spring planting, summer sowing, autumn harvest and winter storage. Everything germinates in spring, grows in summer, harvests in autumn, and no longer hides in winter. Beginning of winter means that life begins to close, everything enters a state of recuperation, plants wither and insects sleep. For example, Xiao Jingwei said, "Fighting means doing things, for beginning of winter and beginning of winter, and finally collecting everything".

As for the division time of the four seasons, China traditionally takes "Li Si" (beginning of spring, Changchun, beginning of autumn and beginning of winter) among the "24 solar terms" as the beginning of the four seasons, and "Bi Fen" (vernal equinox and autumnal equinox) and "Two Fingers" (summer solstice and winter solstice) as the midpoint of the four seasons, which has obvious astronomical significance.