Xu Bingnian is a year name in the Lunar New Year, such as 2006, 1946, 1886...(60-year cycle). Also known as the Year of the Dog. In ancient China, heavenly stems and earthly branches was used as the method to calculate the year, month, day and time, that is, each heavenly stems and earthly branches was paired in a certain order and was not repeated, which was used as the code of the year, month, day and time.
Put a word in the front "heavenly stems" and a word in the back "earthly branches", thus forming a pair of stems and branches. If "Tiangan" begins with the word "A", "Dizhi" begins with the word "Zi".
Extended data:
Searching for trunks and branches by natural number sorting method
It is based on the fact that the first year of A.D. is the year of the heart, the symplectic 8 is 10, the period of the trunk is 10, and the period of the branch is 12.
The order of aerial stem is 1 ~ 10, and the order of aerial stem is 1 ~ 12.
BC's algorithm:
Annual stem = 8-N(N￠8) or 8-N+ 10(N≧8), and the remainder of n = number of years/10 = number of digits in a year.
Year branch = 10-N(N 655438+00) or10-n+12 (n ≧10), where N= remainder of years/12.
Example: Find the branch of 22 BC and 159 BC?
Solution: the annual dry of the first 22 years =8-2=6= since, and the annual dry of the previous 159 years =8-9+ 10=9= nonyl;
Annual expenditure in the previous 22 years =10-12 =12 = sea, and annual expenditure in the previous 159 years = 10-3=7= noon;
Therefore, in the first 22 years, the main branch was Jihai, and in the first 159 years, the main branch was Renwu.
Algorithm after AD:
Annual stem = n-3 (n < 3) or N-3+ 10(N≤3), and the remainder of n = number of years/10 = digits of years.
Year branch = n-3 (n < 3) or N-3+ 12(N≤3), and N= remainder of years/12.
Example: Find the trunk and branches of the year 1 164 and 20 1 1?
Annual dry1164 = 4-3 =1= a, annual dry 2011-3+10 = 8 = symplectic;
Annual expenditure1164 = 0-3+12 = 9 = application, annual expenditure 20 1 1 =7-3=4= gross;
Therefore, Shen Jia is the main branch of 1 164 and Xinmao is the main branch of 20 1 1.
Baidu Encyclopedia-Xu Bing Niannian
Baidu encyclopedia-yearbook of cadres and branches