How to calculate the heavenly stems and earthly branches watch?

Heavenly stems: subtract 3 from the year and divide by 10. If there is no remainder, it is the last heavenly stems, and the remainder is 1 for A, and 2 for B, and then push back in turn.

Ground branch: subtract 3 per year, divide by 12, no remainder is the last ground branch, remainder is 1, 2 is ugly, and push it back in turn.

Heavenly stems and earthly branches is divided into four images of Yin-Yang and Five Elements. The five elements are divided into four images, and ugliness is born together. Judging from the ranking, the five elements of soil rank behind the wood fire and gold water. "Chen" ranks behind "Yin Mao" who belongs to five elements of wood. "Wei" ranks behind the "four things" of the five elements of fire. "Xu" ranks behind the five elements of gold "Shen You". "Ugliness" ranks behind "Haizi" in the water of five elements.

The twelve earthly branches can also be understood as four images: Yin is in the east of Shaoyang, in the south of noon, Shen is in the west of Shaoyin, and Haizi is ugly in the north of Laoyin. The order of the twelve earthly branches begins with the water of Laoyinzi, which has the same meaning as the winter solstice and a sun, and ends with the water of Hai. Therefore, the order of the twelve branches is: Zi Chou Mao Yinchen has requested an audience at noon.

Origin and development

In the ancient imperial era, there was the embryonic form of Ganzhi calendar and Nian. "Ganzhi" was called "Sui" in ancient times (photo). According to the records of Pangu Wang Biao and Three Meetings, "the name of the first emperor is named after the name of the branch, and the age is determined." Ten days later, I said, "Fufeng, Youmeng, Rouzhao, Qiangyi, Zhu Yong, Tu Wei, Zhang Shang, Chongguang, Xuannuo and Zhaoyang".

12 support: Quinton, Chi Fenruo, She Tige,,,, Luo, Qi Tan, Zuo Meng, and Da Yuanxian. "Year" takes 60 Jiazi (chronology of branches and branches) as the operation cycle. "Easy cohesion" comes into being at the age of 30. Biography of Huang San: "King Mudd of Heaven, taken at the age of".

Wan Minying, a famous historian in Ming Dynasty, determined that the drought calendar was invented in the era of Emperor Wu of Han Dynasty according to the records of ancient documents in China, and it was recorded in detail in his book "Three Meetings". Heavenly stems and earthly branches's invention had a far-reaching impact, and it was used in calendar, arithmetic, calculation, naming, etc. (Zi Tongzhijian, the official history compiled in the Northern Song Dynasty, used this set of official terms to record the years).