What is a lunisolar calendar?
The dates in a lunisolar calendar relate to both the phases of the moon and the season of the solar year. There are 12 months in the year, with each month beginning with the new moon. However, in order to remain in sync with the tropical year, an extra month is typically intercalated every two or three years. Examples of lunisolar calendars are the Buddhist, Hindu, Hebrew and Chinese calendars.
