202165438+February 12 what is the lunar calendar?

202 1 12 12 Lunar New Year's Day, Sunday.

The Chinese lunar calendar adopts the appropriate principle of "leap", so that the approximate length of the average calendar year is equal to the length of the tropic year (365.2422 days).

Therefore, the year of the lunar calendar is basically synchronized with the year of the solar calendar, but the lunar year in the solar calendar is only a simple accumulation of 12 lunar months, with a length of 29.5x 12=354 days, and the year of the solar calendar is about 1 1. Therefore, after the length is accumulated, there will be an inversion between the month and the cold and heat. The Lunar New Year is usually in winter, but it may come in summer.

China lunar calendar is widely used in China and Southeast Asia, because it can reflect the alternation of cold and summer and the change of moon phase, so it is widely used in mid-latitude areas of the northern hemisphere, especially in China.

Related introduction of the lunar calendar

Lunar calendar is a traditional calendar in China. It takes the change period of the moon phase as the length of the month, adds the "24 solar terms" component of the elephant trunk calendar, and refers to the length of the tropical year of the sun, and sets leap months to make the average calendar year adapt to the tropical year.

The lunar calendar is a calendar based on the lunar calendar and combined with the solar calendar. Strictly speaking, it should not be called the lunar calendar, but the combination of yin and yang.

Many people think that the lunar calendar is the lunar calendar, but there are still differences between the two. Compared with the solar calendar, the time of the lunar calendar is about eleven days apart every year. If it is completely in accordance with the lunar calendar, the Spring Festival will be celebrated in summer in five years. However, this didn't happen, because there was a great invention in China's calendar called "definite leap method". Every 19 year has 7 leap months, and a year with leap months has 383 or 384 days, which is called leap year. For example, 20 16 and 2020 are leap years.

Old calendar, old calendar and lunar calendar also refer to the lunar calendar. However, the old calendar and the old calendar are only relative to the new calendar (that is, the Gregorian calendar), and they are not proper titles. The lunar calendar is actually a calendar arranged only according to the changes of the moon phases.