Is the lunar calendar the lunar calendar?

Lunar calendar is a traditional calendar in China, and lunar calendar is a kind of yin-yang calendar, which is usually called lunar calendar by mistake among the people. The lunar calendar takes the change cycle of the moon phase, that is, the length of the moon is one month, plus the "24 solar terms" of the elephant calendar, and takes the length of the tropical year of the sun as the year. By setting leap months, the average calendar year adapts to the tropic year. Lunar calendar is a calendar based on China calendar (lunar calendar) and integrated with solar calendar. Therefore, strictly speaking, the lunar calendar in China should not be called the lunar calendar, but the combined calendar of yin and yang.

The lunar calendar is based on the lunar calendar (China calendar), because the lunar calendar is based on the change of the moon phase, regardless of the movement of the earth around the sun, so the changes of the four seasons in the summer calendar have no fixed time and cannot reflect the changes of seasons; However, the calendar can reflect the tidal phenomenon and is a guide for guiding maritime activities in ancient times. Unlike the fixed solar year of 365 days or 366 days, the solar year sometimes differs from the lunar year by one month. In order to coordinate the number of days between the first month of the lunar calendar and the tropic year, the "leap method" is adopted to adjust the total number of days between the lunar calendar and the tropic year.