On the calendar, what are big numbers and small numbers?

Arabic numerals represent the solar calendar, China numerals represent the lunar calendar, and the lunar calendar is the lunar calendar.

First of all, the solar calendar

The solar calendar is a calendar based on the movement cycle of the earth around the sun. The Gregorian calendar year is approximately equal to the tropic year, one year 12 months. This "month" has nothing to do with the first lunar month.

The month and date of the solar calendar are very consistent with the position of the sun on the ecliptic. According to the date of the solar calendar, we can clearly see the changes of cold and warm seasons in a year. But every month, you can't see the new moon, the new moon, the new moon.

At present, the Gregorian calendar, which is commonly used in the world, is a solar calendar, with 365 days in a normal year and 366 days in a leap year, once every four years, once in a hundred years and once again in the 400th year, that is, there are 97 leap years every 400 years. The average length of the Gregorian calendar is only 26 seconds away from the tropic year, and it takes only one day to accumulate 3300 years.

Second, the lunar calendar

Lunar calendar is one of the traditional calendars in China, also known as lunar calendar, ancient calendar, Han calendar, yellow calendar, summer calendar and old calendar.

Astronomy mainly refers to the calendar arranged according to the moon phase cycle, in which the moon orbits the earth once (taking the sun as the reference, the actual moon runs for more than one week). ) is January, that is, the calendar based on the moon, with twelve calendar months in a year. In the process of calendar development and evolution, the emergence of 24 solar terms was used to scientifically guide agricultural production, and the lunar calendar (Han calendar) was formed.

Although the lunar calendar and lunar calendar are commonly known as ancient calendar, Han calendar, summer calendar and old calendar, there are still differences between lunar calendar and lunar calendar (Han calendar). The traditional summer calendar (Han calendar) is actually a kind of yin-yang calendar.

The so-called lunar calendar refers to the lunar calendar, just another name.

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About the lunar calendar

According to the data, the lunar calendar is a traditional calendar in China, and there are also names such as lunar calendar, Chinese calendar, summer calendar, Han calendar and Chinese calendar. However, the lunar calendar is not a simple lunar calendar, but a combination of yin and yang. It takes the change period of the moon phase, that is, the length of the moon is one month, and refers to the length of the tropical year of the sun. By setting 24 solar terms and leap months, the average calendar year adapts to the tropic year.

According to the chronology, the first year was the reign of Xuanyuan Huangdi, the ancestor of China. According to the data, China's calendars and calendar years adopt the three-in-one calendar of Yin and Yang. When did it first originate? Therefore, it is impossible to verify it for the time being.

According to the unearthed ancient books in Oracle Bone Inscriptions and China, it is generally believed that the current calendar rule of the integration of Yin and Yang originated in the Yin and Shang Dynasties. From ancient times to the end of Qing Dynasty when the solar calendar was put into use, there were 102 calendars in the history of China, such as Xia calendar, Shang calendar (lunar calendar), Zhou calendar, Western Han taichu calendar calendar, Sui emperor calendar and Tang Dayan calendar.

Yin and Yang are the main branches, Yin naturally refers to the moon, Yang refers to the sun, and the main branch refers to heavenly stems and earthly branches. Heavenly stems: A, B, P, D, E, G, N, N branches: Zi Chou Yin Mao, Tatsumi, did not apply for a visit at noon. In order, heavenly stems and earthly branches takes one word each to form a calendar year, such as Jiazi Year and Ugly Year. After 60 years, I returned to the starting point, so 60 years is called Jiazi. So 60 years old is also called 60 years old.

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How did the "lunar calendar" come about? -People's Network