How to calculate the nominal age?

The nominal age record is one year old at birth, and it will increase by one year every Spring Festival.

On the other hand, one-year-old was born at the age of zero, and increased by one year after each Gregorian birthday. Therefore, the nominal age is one year older than the full age (birthday has been celebrated this year) or two years old (birthday has not been celebrated this year).

Convert extended data from nominal age to full age:

Transition from nominal age to full age: before my lunar birthday, full age = nominal age-2; On or after my lunar birthday, one year old = nominal age-1;

One-year-old converted into nominal age: before my lunar birthday, nominal age = one year old+2; On and after my lunar birthday, nominal age = one year old+1.

According to the lunar calendar (lunar calendar), the nominal age starts from 1, and every year the new year will grow by one year.

According to the foreign calendar (solar calendar), a person's first birthday is counted from zero, and each birthday is one year longer.

Article 2 of the Supreme People's Court's Interpretation on Several Issues Concerning the Specific Application of Laws in the Trial of Juvenile Criminal Cases stipulates that the age shall be counted from the second day of the first birthday.

References:

Imaginary age-Baidu encyclopedia