That is, its months are synchronized with the phases of the moon, but its average year length approximates the mean length of a solar year.
These excess days are epacts, and are added to the day of the solar year to determine the day of the lunar year.
The solar year was defined as days, and divided into 24 equal solar terms.
A solar year is divided into 24 solar terms, which are the seasonal term guiding farm works.
The dates above are approximate; notice that there are 2 days missing from a solar year in the table above.
As each sign is linked to a month of the solar year, it is thereby also linked to a season.
A solar year, however, is slightly shorter than 365 days and 6 hours (365.25 days).
However, the more precise length of a solar year is about 365.2425 days.
