How to calculate the heavenly stems and earthly branches in the calendar? For example, today is May 23rd, and it is May and Geng Day. How is it calculated?

The date of heavenly stems and earthly branches is easy to calculate, but the date is not.

Since the anniversary, it has been continuous and never stopped. Because leap year is a leap month, it is difficult to find out the law.

Although there are several "mental algorithms", the complicated rules are beyond ordinary people's grasp.

It's amazing to see "counting with your fingers" in old books, but it's actually counting dry branches.

So, as long as you don't want to be a professional fortune teller and want to know what you are doing on a certain day, just look at the calendar.