The year of Renxu is one of the sixty years of the Ganzhi calendar. It roughly corresponds to the Gregorian calendar years such as 1982, 1922, 1862... (a cycle of 60 years), which is the year of Xu (dog).
The year of Renxu is one of the sixty years in the Ganzhi calendar, and it is the year of Xu (Dog). The so-called stem and branch chronology means: in a literal sense, the stems and branches are equivalent to the trunk, branches and leaves of a tree. In ancient my country, the sky was the dominant one and the earth was the subordinate one. The connection between the sky and the branches is called the heavenly stems, the connection between the earth and the branches is called the earthly branches, and together they are called the heavenly stems and earthly branches, referred to as the stems and branches.
There are ten heavenly stems, namely A, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren, and Gui. There are twelve earthly branches, namely Zi, Chou, Yin, Mao, and Chen. , Si, Wu, Wei, Shen, You, Xu, Hai.
The ancients combined them in the order of Jiazi, Yichou, Bingyin... (that is, the heavenly stems rotate six times and the earthly branches rotate five times, which is exactly one cycle) without repetition. There are sixty pairs from Jiazi to Guihai, called one Jiazi. Ancient Chinese people used these sixty pairs of stems and branches to represent the serial numbers of the year, month, day, and hour. They cycle over and over again. This is the chronology of the stems and branches.
Extended information:
The stem and branch calendar is calculated from the beginning of spring in the twenty-four solar terms, and the stem and branch calendar is the counting method of the stem and branch calendar. This is true for all official almanacs (i.e. almanacs) of all dynasties. After the Republic of China, the emperor's reign name was abandoned, and the lunar calendar could only use the stems and branches to mark the year. The range of the year ranged from the first day of the first lunar month to the New Year's Eve. This point is not controversial.
The lunar calendar and the Ganzhi calendar are two different calendars. They are different in the starting point of the year, the rules of dividing the months, and the number of days in each year. Since the Gregorian calendar was adopted after the Republic of China, many people lack calendar knowledge and often confuse the Ganzhi calendar with the lunar calendar.
Baidu Encyclopedia-Renxu Year (Stems and Branches Calendar System)