Children's fortune-telling age _ children's fate age?

How old was the baby when it was born?

There are two algorithms:

If the child is born in June of 20 19, the child will be two years old.

If a child is born after 12 midnight on Chinese New Year's Eve, he will be two years old.

Children are generally divided into nominal age and full age. At the time of birth, the full age is 1, and the nominal age is 2.