What chronology does the China lunar calendar belong to?

China lunar calendar belongs to the chronology of trunk and branch.

In the China lunar calendar, the trunk of 10 day and the branches of 12 day are combined to form a calendar year. Literally, trunks and branches are equivalent to trunks and branches. In ancient China, the sky was dominant and the earth was subordinate. The connection between heaven and stem is called heavenly stem, and the connection between earth and stem is called earthly branch. Together, it is called heavenly stems and earthly branches, or "dry branch" for short.

There are ten heavenly stems, namely A, B, C, D, E, Ji, G, Xin, Ren and Gui, and twelve earthly branches, namely Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai. The ancients paired them in a certain order, without repetition, from Jiazi to Guihai * * * 60 pairs, called Sixty Jiazi.

The ancient Chinese used these 60 pairs of branches to represent the serial numbers of years, months, days and hours, and this is the discipline of branches and branches.