68 years old now in 2023 - what year born?

Today, 26 March 2023 if a person is 68 years old now, what year was he born? See below:

If 68 years old, year of birth is:
1954 or 1955*

*It depends on whether he was born before or after 1 January 1955.

If now 68 years and his year of birth 1954 if he was born after 26 March 1954 until 31 december 1954 inclusively, and his year of birth is 1955 if he was born from 1 January 1955 to 26 March 1955.

Other examples:

If now 4 years, year of birth 2018 or 2019
If now 13 years, year of birth 2009 or 2010
If now 25 years, year of birth 1997 or 1998
If now 68 years, year of birth 1954 or 1955

HTML code:

BB code: