61 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 61 years old now, what year was he born? See below:

If 61 years old, year of birth is:
1964 or 1965*

*It depends on whether he was born before or after 1 January 1965.

If now 61 years and his year of birth 1964 if he was born after 28 October 1964 until 31 december 1964 inclusively, and his year of birth is 1965 if he was born from 1 January 1965 to 28 October 1965.

Other examples:

If now 10 years, year of birth 2015 or 2016
If now 13 years, year of birth 2012 or 2013
If now 26 years, year of birth 1999 or 2000
If now 45 years, year of birth 1980 or 1981

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