When is the birthday of the calendar usually? I don't know the lunar calendar, the old calendar and the lunar calendar! How to calculate?

Birthdays are the same in any calendar in our country, because our birthdays are definite, and the most important thing is not to be confused. For example, if you were born on the first day of New Year's Day, it is not New Year's Day. At present, China adopts the calendar year and the general Gregorian calendar. The main problem is that many people's birthdays are reported according to the lunar calendar, and their identity information is also entered according to this date, but everyone regards it as the Gregorian calendar date. So now many people fill in their identity information according to the solar calendar, but their birthdays are based on the lunar calendar.

In my opinion, the date of birth of the ID card should be filled in according to the Gregorian calendar, and you chose the lunar calendar or Gregorian calendar as your birthday.

Gregorian calendar is the common legislation of all countries, and New Year's Day is the beginning of a year. Lunar calendar is a traditional calendar in China, starting from New Year's Day and starting the new year.