How long is the "Hui Yuan" in the book "The Quiet History of Huang Ji" by Shao Yong, a master of Yi Studies in the Song Dynasty?

The yuan of time measurement will be equivalent to 365 days now, that is, one year.

1. Yuan, Hui, Rhyme and Poetry

Shao Yong in Song Dynasty mentioned in the Yellow History that the larger annual cycle is the time unit of Yuan, Hui, Yun and Shi. Hui Yuan is called "Hui Yuan" for short. Shao Yong's unit of time is used to calculate the age of the world. He called the cycle of the world the beginning and end of the world. Shao Yong believes that world history is such a continuous cycle process. So we come to the conclusion that "the world always has a beginning and an end", and declare that everything in the whole nature is from scratch and from scratch.

2. Hui Yuan

One yuan can be divided into twelve links, that is to say, the 64 charts of the circle chart are divided into four chapters, and * * * is divided into twelve chapters, that is to say, after five charts, there is a link. The difference is twelve hours, namely, the club, ugly club, yin club, Mao club, Chen club and Shanghai club. Obviously, it's a bit common for a five-year system to be 10800. So you can use the principle of choosing one from six to change six. Five hexagrams become thirty hexagrams. That is, 30 fortunes and one fortune in 360 years. It is still difficult to calculate, and then six points, one hexagram becomes six hexagrams, and one hexagram is unified for 60 years. One hexagram can be divided into six hexagrams in 60 years, one hexagram becomes six hexagrams, and one hexagram is 10 year. Almost.

3. Law of change

This book mentions that Yuan is the world after Yuan, and Yuan can be understood as a circle. The circle chart represents the movement of cosmic time. Starting from the composite chart below the circular chart, we rotated it clockwise 129. 600 years later, we returned to Kungua directly below 1 yuan. 365 days later is like a year.

Therefore, the element of time timing can be understood as a cycle.