72 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 72 years old now, what year was he born? See below:

If 72 years old, year of birth is:
1953 or 1954*

*It depends on whether he was born before or after 1 January 1954.

If now 72 years and his year of birth 1953 if he was born after 28 October 1953 until 31 december 1953 inclusively, and his year of birth is 1954 if he was born from 1 January 1954 to 28 October 1954.

Other examples:

If now 10 years, year of birth 2015 or 2016
If now 15 years, year of birth 2010 or 2011
If now 20 years, year of birth 2005 or 2006
If now 90 years, year of birth 1935 or 1936

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