Is the real age calculated by nominal age or one year old?

According to international practice, the age is one year old, and the legal age is also one year old.

A person's real age should be one year old. Because each of us is based on the lunar calendar. People born in Gregorian calendar 1 month are not in Gregorian calendar year, but in lunar calendar year. Gregorian calendar is now an international calendar, commonly known as Gregorian calendar. The solar calendar, also known as the solar calendar, is based on the fact that the earth orbits the sun once a year, which is very common in western countries, so it is also called the western calendar.

The relationship between one year old and nominal age:

1, nominal age is only related to Chinese New Year, and one year old is only related to birthday.

2, 1 Nominal age at birth, 0 years old. After the Spring Festival, you will be one year older, and after your birthday, you will be one year older. Nominal age and one year old are traditionally calculated according to the lunar calendar. I don't add it until my birthday. The nominal age is one year after birth and one year after the Chinese New Year.

Extended data

1, nominal age

China's customary age calculation method is based on the calendar year after birth, that is, even if he was born in 1 year, he will increase 1 year every New Year. Generally calculated according to the lunar calendar, but also calculated according to the Gregorian calendar.

For example, a baby born at the end of 65438+February is 1 year after birth, or 1 year after the Gregorian calendar or the local Chinese New Year. In this way, the baby is only a few days old and is already 2 years old. This calculation method is practical.

2, one-year-old age

Also known as full age, it refers to the number of anniversaries or birthdays experienced from birth to calculation. For example,1A census was conducted at 0: 00 July 1990, and1A baby born in February 1989, with a nominal age of 2 years. Actually, it's just been more than six months, and I haven't celebrated my birthday yet. According to one year old, it should be less than 1 year old.

One-year-old age is often 1 ~ 2 years younger than the nominal age, which is a commonly used age calculation method in population statistics. One year old-0 years old at birth, every Gregorian birthday 1 year old.

3, the exact age

Refers to the days from the date of birth to the date of calculation. It reflects people's real life time more accurately than one-year-old age, but it is rarely used for demographic statistics because of its complicated statistical summary. In real life, except for babies under 1 year, especially newborns under 1 month, people usually don't calculate the exact age by day.

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