Three ancient dating methods, month and day.

1. In ancient times, there were three chronological methods, namely, the chronological method of year number, the chronological method of trunk and branch, and the chronological method of trunk and branch.

2. There were three lunar calendar methods in ancient times: orderly lunar calendar method, secular calendar method, lunar calendar method and lunar month alias.

3. Three ancient calendar methods: orderly calendar, cadre calendar and monthly calendar.

4. In the date method, the date method of the moon phase refers to special names such as new moon, moon, moon, moon and ghost. The first day of each month is called the new moon, the third day of each month is called the king, the middle of the month is called the king, the fifteenth day of the abortion and the sixteenth day of the big month, the day after the king is called the king, and the last day of each month is called the back.