What do beginning of spring, Changxia, beginning of autumn and beginning of winter mean?

Beginning of spring, the first of the 24 solar terms, is the beginning of the official calendar and the lunar calendar. The arrival time is on February 3-5 every year in Gregorian calendar, when the sun reaches 3 15.

Beginning of spring's meaning is "start". Since the Qin Dynasty, China has always regarded beginning of spring as the beginning of spring. Beginning of spring is divided from astronomy, with warm spring and fragrant flowers in bloom. Spring is growth, cultivation and sowing. [3] The period from the Spring Festival to the long summer is called spring.

Long summer is the seventh solar term among the twenty-four solar terms. The time point is between May 5 and 6 of the Gregorian calendar, and the sun reaches 45 degrees of the Yellow Meridian. The date of the lunar calendar's long summer is not fixed, it is around the first day of April every year, because the lunar calendar is the lunar calendar. "The bucket refers to the southeast, and the dimension is long in summer. Everything grew up here, hence the name Long Summer.

Astronomically, Chang Xia said that bidding farewell to spring is the beginning of summer. When the temperature rises obviously, the summer heat comes, thunderstorms increase and crops enter the peak season, people are used to taking long summer as an important solar term.

Beginning of autumn is the 13 solar term in 24 solar terms, the end of the last month of the dry calendar and the beginning of applying for the moon; The time is around the first day of the seventh lunar month every year. "Autumn" means cool in summer, which means the beginning of autumn. When we arrived in beginning of autumn, the phoenix tree began to shed its leaves, so there is an idiom "Autumn is known by falling leaves". Literally, the word "autumn" consists of the word "harmony" and the word "fire", indicating that the five grains are mature.

Beginning of winter, the nineteenth of the twenty-four solar terms, is also one of the traditional festivals of the Han nationality, as the end of the calendar and the beginning of the moon; The time point is between Gregorian calendar165438+1October 7-8 every year, that is, the sun is located at 225 degrees of the yellow meridian. After beginning of winter, the sunshine time will continue to shorten, and the height of the sun will continue to decrease at noon. During the period of beginning of winter, the Han people regarded winter solstice as beginning of winter. In order to spend the severe winter, it is necessary to supplement the dietary customs.