1: Usually, the date of birth when we fill in the form is filled in according to the solar calendar. Birthdays are traditionally calculated according to the lunar calendar. It is a lunar birthday. For example, our traditional festival is also a lunar birthday.
2. Nominal age is calculated by adding one year. It is called 1 year after birth and grows to 1 year after the Spring Festival. . . )
3. The constellations are calculated according to the birthday of the solar calendar, because they come from western countries.