94 years old now in 2024 - what year born?

Today, 15 September 2024 if a person is 94 years old now, what year was he born? See below:

If 94 years old, year of birth is:
1929 or 1930*

*It depends on whether he was born before or after 1 January 1930.

If now 94 years and his year of birth 1929 if he was born after 15 September 1929 until 31 december 1929 inclusively, and his year of birth is 1930 if he was born from 1 January 1930 to 15 September 1930.

Other examples:

If now 12 years, year of birth 2011 or 2012
If now 13 years, year of birth 2010 or 2011
If now 22 years, year of birth 2001 or 2002
If now 85 years, year of birth 1938 or 1939

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