73 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 73 years old now, what year was he born? See below:

If 73 years old, year of birth is:
1952 or 1953*

*It depends on whether he was born before or after 1 January 1953.

If now 73 years and his year of birth 1952 if he was born after 28 October 1952 until 31 december 1952 inclusively, and his year of birth is 1953 if he was born from 1 January 1953 to 28 October 1953.

Other examples:

If now 10 years, year of birth 2015 or 2016
If now 13 years, year of birth 2012 or 2013
If now 24 years, year of birth 2001 or 2002
If now 91 years, year of birth 1934 or 1935

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