Gregorian calendar year reading
The year of the branch is 18 days (A, B, C, D, E, Ji, G, Xin, Ren and Gui) and 12 days (Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You and Qi). You can check the perpetual calendar when you need it. But the perpetual calendar can't find ten thousand years, for example, what about BC? For example, what if the calendars of Xia, Shang and Zhou are different? Here are a few simple algorithms to facilitate the query.
First of all, it should be noted that the 60-year-old count of the main branch is not affected by the calendar rules of Xia, Shang and Zhou dynasties, but only by time.
Sixty subsequences:
In each year, 65,438+00 days are ahead and 65,438+02 days are behind. There are two words. Heavenly stems and earthly branches is arranged in sequence, such as Jiazi and Emei ... until the end of Guihai, the least common multiple of 65,438+00 and 65,438+02 is 60, so every 60 years is one, and it returns to Jiazi year.
One: Calculate the year of AD, as shown in the following figure:
Because the first year of A.D. is a year with a heart, we can make a simple calculation on this basis. The rule is: set the "Xin" of Tiangan to 1, then 2, 3, etc. Set the unitary of the ground branch to 1, then 2, 3, etc. Find out the heavenly stems corresponding to the mantissa in the heavenly stems from the mantissa in AD; Divide the AD calendar year by 12, and use the remainder to find the earthly branch corresponding to the remainder, thus obtaining the AD calendar year. Such as 19 1 1 year, its mantissa is 1, and the corresponding stem is "Xin"; Divide1911by 12 to get 159, the remainder is 3, and the corresponding branch is "hai", which is the year of Xinhai.
The second type: calculate BC, as shown in the figure below;
For example, BC 1, mantissa is 1, and the corresponding heavenly stems are "Geng". If 1 is divided by 12, the remainder is 1, and the corresponding branch is "Shen", then BC 1 is the year. For example, in 55 BC1year, it was calculated as Gengxunian.
The third type: look at the picture below:
Remember the exact year, then add it up in turn, flashback and subtract it, and take 60 as a round to find out the stem of the question.
The above is the calendar of the year comparison table of Sixty Jiazi, which is about the sharing of Sixty Jiazi. Read the 60-year calendar quick look-up table, I hope this will help everyone!