What's the difference between "one year old" and "nominal age"?

One year old, according to the date of birth, nominal age, birth is 1 year old.

1, one year old is 1 year old to calculate 1 year old, and nominal age refers to the calculation of age according to the natural annual gray. For example, a person was born in 12, 3 10, and the next day is 10, 10.

2. One year old is an internationally accepted age calculation method. It calculates the length of time that has passed since birth (as a cardinal number, it can also calculate the mantissa, such as three years and two months, seven and a half years old, etc. ). In China, in order to distinguish it from the traditional way of calculating age, that is, to calculate the order of years after birth (ordinal number), there are two names: one year old and nominal age.

3. Due to the influence of the method of calculating the age of imaginary years, many people have various misunderstandings about the calculation of one year old. It is most common to think that the year of calculating time MINUS the year of birth is one year old, which is influenced by not considering the birthday when calculating the nominal age.

4. Dummy age is a traditional way of counting age in China, and it is also very popular in other East Asian countries. It is 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 has nothing to do with the pregnancy he has experienced in the past year.

5. Dummy age is an important folk custom of the Chinese nation. It is based on the Spring Festival (Lunar New Year), and one year old is based on my birthday. From the beginning, the nominal age grows one year after each New Year, according to the lunar calendar. A person's first birthday is counted from scratch, and every birthday is one more year, according to the foreign calendar (solar calendar).