What does Ding Hainian mean? What does Ding Hainian mean?

1. The 24th year of a cycle has a long history in China, and it is called "Dinghai Year" in the official calendar.

2. If the number of years in the Gregorian calendar is divided by more than 60 and 27, or the number of years is reduced by 3, the remainder divided by 10 is 4, and the remainder divided by 12 is 0. The year from beginning of spring to beginning of spring in the following year is "Dinghai Year".

3. The calendar year of trunk and branch is counted from beginning of spring in the twenty-four solar terms, which is the calendar year method of trunk and branch. The same is true of the official almanac of past dynasties (that is, the Yellow Calendar). After the Republic of China, the emperor's year number was abandoned, and the lunar calendar can only record the year with dry branches, which ranges from the first day of the first month to New Year's Eve, which is indisputable. Lunar calendar and trunk calendar are two different calendars, which are different in the starting point of a year, the division rules of months and the number of days in each year. Due to the use of the Gregorian calendar after the Republic of China, many people lack the knowledge of the calendar, so the two are often confused.