37 years old now in 2024 - what year born?

Today, 12 September 2024 if a person is 37 years old now, what year was he born? See below:

If 37 years old, year of birth is:
1986 or 1987*

*It depends on whether he was born before or after 1 January 1987.

If now 37 years and his year of birth 1986 if he was born after 12 September 1986 until 31 december 1986 inclusively, and his year of birth is 1987 if he was born from 1 January 1987 to 12 September 1987.

Other examples:

If now 12 years, year of birth 2011 or 2012
If now 18 years, year of birth 2005 or 2006
If now 23 years, year of birth 2000 or 2001
If now 92 years, year of birth 1931 or 1932

HTML code:

BB code: