What is the difference between the lunar calendar and the lunar calendar?

The difference between the lunar calendar and the lunar calendar:

1. Different natures: the Gregorian calendar is the solar calendar, which is a universal date; the lunar calendar is a lunisolar calendar and is my country's traditional farming date.

2. Different algorithms: The Gregorian calendar is a calendar based on the cycle of the earth orbiting the sun; while the lunar calendar is based on the cycle of the moon orbiting the sun, and also refers to the calendar based on the solar return year.

3. Different categories: The Gregorian calendar is used to record dates, while the lunar calendar also includes farming work and rest time, which derives from the twenty-four solar terms.

The origin of the lunar calendar

The lunar calendar uses the period of time when the moon waxes and wanes once as one month, which lasts for 29 and a half days. In order to facilitate calculation, the big month is customized to have 30 days and the small month is 29 days. In December of a year, the big and small months are generally arranged alternately. The lunar calendar has about 365 days in a year, and there is no difference between ordinary years and leap years. The lunar calendar does not take into account the movement of the earth around the sun, so the changes in the four seasons do not have a fixed time on the lunar calendar. It cannot reflect the seasons, which is a big shortcoming. In order to overcome this shortcoming, people later established a new calendar, which is the so-called lunar calendar.

The summer calendar (also called the lunar calendar or the lunar calendar) still used in our country is this lunar and solar calendar. Like the lunar calendar, a month is made based on the time when the moon waxes and wanes once, that is, the big month has 30 days and the small month has 29 days. However, it also uses the method of adding leap months to make the average number of days per year close to the number of days in the whole year of the solar calendar. , to adjust the seasons. The lunar calendar has an extra leap month approximately every two or three years.