June 2007 +0 1 How old are you?

Born in that year, this year 15 years old.

This is because the time span from 1 1 month in 2007 to1/month in 2023 is 16 years. But because the first year after birth has not passed, it is still 15 years old. The age calculation method is to calculate the number of years from the date of birth to the target date.