56 years old now in 2023 - what year born?

Today, 26 March 2023 if a person is 56 years old now, what year was he born? See below:

If 56 years old, year of birth is:
1966 or 1967*

*It depends on whether he was born before or after 1 January 1967.

If now 56 years and his year of birth 1966 if he was born after 26 March 1966 until 31 december 1966 inclusively, and his year of birth is 1967 if he was born from 1 January 1967 to 26 March 1967.

Other examples:

If now 4 years, year of birth 2018 or 2019
If now 16 years, year of birth 2006 or 2007
If now 28 years, year of birth 1994 or 1995
If now 31 years, year of birth 1991 or 1992

HTML code:

BB code: