Is the birthday a national calendar or a lunar calendar?

Looking at the constellation depends on the solar calendar, which is the Gregorian calendar.

Fortune-telling and traditional festivals in China are all based on the lunar calendar.

Since the founding of People's Republic of China (PRC), the year number has been designated as the AD year, that is, the Gregorian calendar.

Therefore, the date of government work, birth and birthday registration, household registration book, ID card and so on are all in accordance with the Gregorian calendar.

But the countryside is still used to celebrating the Lunar Birthday.