28 years old now in 2025 - what year born?

Today, 18 January 2025 if a person is 28 years old now, what year was he born? See below:

If 28 years old, year of birth is:
1996 or 1997*

*It depends on whether he was born before or after 1 January 1997.

If now 28 years and his year of birth 1996 if he was born after 18 January 1996 until 31 december 1996 inclusively, and his year of birth is 1997 if he was born from 1 January 1997 to 18 January 1997.

Other examples:

If now 3 years, year of birth 2021 or 2022
If now 12 years, year of birth 2012 or 2013
If now 21 years, year of birth 2003 or 2004
If now 35 years, year of birth 1989 or 1990

HTML code:

BB code: