Twelve days' work, what are the twelve branches?

In China's traditional calendar, A, B, C, D, E, Ji, G, Xin, Man and Ghost are called "ten heavenly stems", while Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai are called "twelve earthly branches". The two cooperate with each other in a fixed order, forming the discipline of cadres and branches. In the sky, A, C, E, E, D, D is Yang, in the earth, Yin, Chen and noon are Yang, and ugly bases are Yin. Ten heavenly stems and twelve earthly branches are matched with Yang, Yin and Yin. If A is Yang and Zi is Yang, it can be made into Jia Zi, B is Yin, ugly can be made into ebony, and A is Yin and Yang.

Heavenly stems and earthly branches, referred to as Ganzhi for short, originated from the observation of astronomical phenomena in ancient China. Ten dry words: encounter, enlightenment, gentleness, firmness, harmony, Tu Wei, Shang Zhang, heavy light, mystery, sunshine. Twelve branches: Kun Dun, Chi Fenruo, She Tige,,, Luo,,, Qitan, Zuo Meng, and Dayuanxian. ?

The simplified heavenly stems and earthly branches: "A, B, C, D, E, Ji, G, Xin, Man and Ghost" is called the ten heavenly stems, and "Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai" are called the twelve earthly branches.

Ten heavenly stems and twelve earthly branches are matched in turn to form sixty basic units, and they cooperate with each other in a fixed order to form the chronology of the stems and branches. Heavenly stems and earthly branches's invention had a far-reaching impact, and heavenly stems and earthly branches still uses it today, for calendar, technology, calculation, naming and so on.