There are Gregorian calendar, lunar calendar and Buddhist calendar?

There are Gregorian calendar, lunar calendar and Buddhist calendar.

Gregorian calendar is the current international calendar, also called solar calendar, commonly known as solar calendar. The solar calendar, also known as the solar calendar, is based on the fact that the earth orbits the sun once a year, which is very common in western countries, so it is also called the western calendar. Since the Revolution of 1911, China has adopted the solar calendar since the first year of the Republic of China, so it is also called the "national calendar". In order to be symmetrical with China's old calendar, it is also called "new calendar". 1949 officially stipulates the calendar year.

The full name of the lunar calendar is the lunar calendar or the pure lunar calendar. The lunar calendar is based on the cycle of the moon, which is the new moon. Because the ancients called the moon "lunar calendar", it was called "lunar calendar" for short. It is difficult to determine the exact date of the lunar calendar, but judging from the Oracle bones in Oracle Bone Inscriptions, the lunar calendar was quite popular in the Yin Dynasty.

The Buddhist calendar is calculated from the time when the Buddha was nirvana. The calculation method of Buddhist calendar: Subtract the Buddha's 80th birthday from 623 BC when he was born to get the number of years of Buddha's nirvana (Buddha's nirvana was in 543 BC), and then add 543 years to 2007 to get 2550 years. After the Buddha's birthday, the Buddha calendar is 255 1 year. Calculation method of Buddhist calendar, and so on.