71 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 71 years old now, what year was he born? See below:

If 71 years old, year of birth is:
1954 or 1955*

*It depends on whether he was born before or after 1 January 1955.

If now 71 years and his year of birth 1954 if he was born after 28 October 1954 until 31 december 1954 inclusively, and his year of birth is 1955 if he was born from 1 January 1955 to 28 October 1955.

Other examples:

If now 6 years, year of birth 2019 or 2020
If now 13 years, year of birth 2012 or 2013
If now 25 years, year of birth 2000 or 2001
If now 76 years, year of birth 1949 or 1950

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