28 years old now in 2023 - what year born?

Today, 22 March 2023 if a person is 28 years old now, what year was he born? See below:

If 28 years old, year of birth is:
1994 or 1995*

*It depends on whether he was born before or after 1 January 1995.

If now 28 years and his year of birth 1994 if he was born after 22 March 1994 until 31 december 1994 inclusively, and his year of birth is 1995 if he was born from 1 January 1995 to 22 March 1995.

Other examples:

If now 10 years, year of birth 2012 or 2013
If now 13 years, year of birth 2009 or 2010
If now 29 years, year of birth 1993 or 1994
If now 83 years, year of birth 1939 or 1940

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