What is the lunar calendar?

The lunar calendar is twelve months in a normal year, and the whole year is 354 days or 355 days. The solar calendar is 365 days in a normal year and 366 days in a leap year, and a leap year is every four years. ?

The lunar calendar is commonly known as the lunar calendar, which is usually called the first day of a month, such as the eighth, ninth and tenth day of September; Mid-month: September 15th and 16th; The end of the month is September 3, and the word "day" is not added after the address. The Gregorian calendar is also called the Gregorian calendar, which is usually called a month and a day, such as March 12, April 2 and May 31, and the time must be followed by the word "day".

The length of the calendar month is determined according to the astronomical phenomena. The big month is 3th and the small month is 29th. The solar calendar has 31 days in the big month and 3 days in the small month. The special February days are 28 days in a normal year and 29 days in a leap year.

the origin of the lunar calendar

the lunar calendar in China's traditional calendar mainly refers to the calendar arranged according to the change of the moon's phase cycle, that is, a calendar with the moon as the basis for determining the calendar month and twelve calendar months in a year. In the process of calendar development and evolution, it combined with the 24 solar terms in the trunk calendar to form the lunar calendar (Han calendar), which is used to guide agricultural production scientifically.

Although lunar calendar and lunar calendar are commonly known as ancient calendar, Han calendar and old calendar, there are differences between lunar calendar and lunar calendar (Han calendar). The lunar calendar (Han calendar) used in modern times is actually a combination of yin and yang, not the traditional lunar calendar.