Why do Koreans start at 1yr old when the rest of the world starts at 0?

Question

Why do Koreans start at 1yr old when the rest of the world starts at 0?

In: Other

Answer 1

I suspect, though have no support whatsoever, that it is more a concept of when and how to measure age. A newborn in Korea (or a few other Asian countries, according to other comments) is 1 because they are living their first year. In western countries age is instead measured by the years completed, turning 1 on the anniversary of their birth date.