Is winter the solstice or is beginning of spring the beginning of the year?

Since ancient times, beginning of spring has been regarded as the beginning of a year.

Heavenly stem algorithm: the number of digits corresponding to heavenly stem is obtained by subtracting 3 from the number of years in A.D. and dividing it by 10 (without considering quotient), while the number of digits corresponding to earthly branch algorithm: the number of digits corresponding to earthly branch is obtained by subtracting 3 from the number of years in A.D. and dividing it by 12 (without considering quotient).

The corresponding numbers of Rhizoma Drynariae are: A, B, C, D, E, E, G, Xin, Ren and Gui.

Corresponding digits of earthly branches: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai.

The winter solstice is the 22nd of the 24 solar terms. "Twenty-four solar terms" is the product of ancient farming civilization. It is a knowledge system formed by ancient ancestors by observing the movement of celestial bodies and understanding the changing laws of seasons, climate and phenology in a year. The "Twenty-four solar terms" were originally determined by the rotation direction of bucket handle, the Big Dipper, which rotates circularly and is closely related to the twenty-four solar terms.

The current "twenty-four solar terms" come from the "fixed gas law" concluded more than 300 years ago. The method of "fixing qi" is a method to determine solar terms according to the position of the sun on the regression ecliptic, that is, on a 360-degree circle "ecliptic" (the apparent path of the sun on the celestial sphere for one year), it is divided into 24 equal parts, each equal part is 15, with spring as the starting point of 0 degree (but beginning of spring is still in the first place in ranking), and arranged according to the degree of the ecliptic.

Beginning of spring, one of the 24 solar terms, is also called the Spring Festival, the First Month Festival, the New Year Festival and the New Year Festival. Standing means "start"; Spring represents warmth and growth. In ancient times, the method of "bucket handle Acupoint" used bucket handle and the Big Dipper in beginning of spring to point to Yin. The current method of "fixing qi" divides solar terms, and beginning of spring is when the sun reaches longitude 3 15. In the era of cadres and branches, taking beginning of spring as the beginning of a year, beginning of spring means that a new cycle has begun, which means that everything is the beginning and everything is rebirth.