In Korea and some other Asian countries, when you are born, you are considered one year old and everyone's age increases one year on New Years. So if you were born on December 29th, on New years day, you will be considered 2 years old.

Did you know that in Korea and some other Asian countries, when you are born, you are considered one year old and everyone’s age increases one year on New Years. So if you were born on December 29th, on New years day, you will be considered 2 years old.

 

East Asian age reckoning is a concept and practice that originated in China and is widely used by other cultures in East Asia and Vietnam, which share this traditional way of counting a person’s age. Newborns start at one year old. The first year of life is counted as one instead of zero, so that a person is two years old in their second year, three years old in their third, and so on.[1][2] Since age is incremented on the new year rather than on a birthday, people may be one or two years older in Asian reckoning than in the Western system.

The system is also widely used by South Koreans, with the exception of the legal system. In Eastern Outer Mongolia, age is traditionally determined based on the number of full moons since conception for girls, and the number of new moons since birth for boys. In Japan and Vietnam it is used for traditional fortune-telling or religion, but it is disappearing in daily life among people in the city.

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In Korea and some other Asian countries, when you are born, you are considered one year old and everyone's age increases one year on New Years. So if you were born on December 29th, on New years day, you will be considered 2 years old.