What is the real age? What is a nominal age?

Real age refers to one year old, which is an internationally accepted age calculation method. It calculates the length of time that has passed since birth (based on the age of zero at birth), and can also calculate the mantissa, such as three years and two months, seven and a half years, etc. ).

Nominal age is a traditional way of counting age in China, and it is also very popular in other East Asian countries. Used to calculate the sequence (ordinal number) of the years that a person is experiencing after birth, which is based on the year when he was born, because this is the first year after birth, and it has nothing to do with the pregnancy time he experienced.

Extended data:

Age counting method

The nominal age is an important folk custom of the Chinese nation, which is based on the Spring Festival (Lunar New Year), and the one-year-old is based on my birthday. The specific conversion method is as follows: the first method: convert the nominal age into the real age: before my birthday in the solar calendar, the real age = nominal age -2.

My birthday after the solar calendar, one year old = nominal age-1; Conversion from one year old to nominal age: nominal age = one year before my birthday in the solar calendar+2; After my birthday in the solar calendar, nominal age = one year old+1. The second type: nominal age = current year (lunar calendar)-year of birth (lunar calendar)+1.

Baidu encyclopedia-one year old

Baidu encyclopedia-nominal age