44 years old now in 2023 - what year born?

Today, 22 March 2023 if a person is 44 years old now, what year was he born? See below:

If 44 years old, year of birth is:
1978 or 1979*

*It depends on whether he was born before or after 1 January 1979.

If now 44 years and his year of birth 1978 if he was born after 22 March 1978 until 31 december 1978 inclusively, and his year of birth is 1979 if he was born from 1 January 1979 to 22 March 1979.

Other examples:

If now 10 years, year of birth 2012 or 2013
If now 14 years, year of birth 2008 or 2009
If now 20 years, year of birth 2002 or 2003
If now 36 years, year of birth 1986 or 1987

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