What day does the lunar calendar mean today?

The lunar calendar means what day it is today.

Lunar calendar is a traditional calendar in China, also known as Chinese calendar, summer calendar, Korean calendar and Chinese calendar. The lunar calendar is not a pure lunar calendar, but a combination of yin and yang. Take the change period of the moon phase as the length of the month, plus the "24 solar terms" component of the trunk and branch calendar, and refer to the length of the solar tropical year as the year. By setting leap months, the average calendar year can adapt to the tropic year.

The lunar calendar belongs to a kind of lunar calendar: its years are divided into flat years and leap years. An average year is twelve months; A leap year is thirteen months. A month is divided into a big month and a small month. The big month has 30 days and the small month has 29 days, and its average calendar month is equal to the full moon. Which month is older and which month is younger in a year is determined by calculation.

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 there is no fixed time for the changes of the four seasons in the summer calendar, which cannot reflect the seasonal changes; 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.

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Advantages of the lunar calendar

(1) The lunar calendar belongs to the lunar calendar, which takes into account the relationship between the sun, the moon and the earth. Lunar calendar is a fixed calendar, which has the characteristics of astronomical calendar and can well correspond to various astronomical phenomena.

② There are only 29 days and 30 days in the lunar calendar, which is determined by the date of the new moon. There are few human factors and it is not easy to change it at will.

The beginning of the year has a strong astronomical significance, and it has the astronomical significance of the year of the sun and the moon.

④ The combination of Yin and Yang can best reflect the traditional culture of the Chinese nation, that is, the unity of heaven and man and the harmony of Yin and Yang.

⑤ Chronology of trunk and branch and chronology of zodiac are recycled; Because it contains solar terms, it is very beneficial to the division of four seasons, and because it contains the moon phase, it also reflects the influence of tides, eclipses and other celestial phenomena and the moon on the climate.

Baidu encyclopedia-lunar calendar