How Many Months In The Chinese Calendar. In order to coordinate the number of days between the solar year and the lunar year, the lunisolar calendar, i.e. The months of the chinese calendar are numbered by the principal term that falls within it (see below).
Unlike the western calendar, each month in the lunar calendar is 29 or 30 days, because the average frequency of each new moon cycle is 29.53059 days. Each month within the calendar starts with the new moon.