May I ask how to calculate the lunar-lunar calendar?

The lunar-lunar algorithm is: The lunar calendar and the solar calendar are two different calendars. The Lunar Calendar (also known as the Lunar Calendar) is one of the traditional Chinese calendars and is based on the cycle of the moon's rotation around the earth. The lunar calendar is based on the movement of the moon, and the length of a month is based on the cycle of the moon's rotation around the earth, which averages 29.5 days. The solar calendar (also known as the Gregorian calendar), on the other hand, is based on the cycle of the Earth's rotation around the Sun, with a year of 365 days and 5 hours, 48 minutes and 46 seconds. Thus, the lunar and solar calendars are calculated differently, and there is no direct relationship between the lunar and solar calendars.