93 years old now in 2025 - what year born?

Today, 22 April 2025 if a person is 93 years old now, what year was he born? See below:

If 93 years old, year of birth is:
1931 or 1932*

*It depends on whether he was born before or after 1 January 1932.

If now 93 years and his year of birth 1931 if he was born after 22 April 1931 until 31 december 1931 inclusively, and his year of birth is 1932 if he was born from 1 January 1932 to 22 April 1932.

Other examples:

If now 11 years, year of birth 2013 or 2014
If now 15 years, year of birth 2009 or 2010
If now 30 years, year of birth 1994 or 1995
If now 60 years, year of birth 1964 or 1965

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