72 years old now in 2025 - what year born?

Today, 16 January 2025 if a person is 72 years old now, what year was he born? See below:

If 72 years old, year of birth is:
1952 or 1953*

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

If now 72 years and his year of birth 1952 if he was born after 16 January 1952 until 31 december 1952 inclusively, and his year of birth is 1953 if he was born from 1 January 1953 to 16 January 1953.

Other examples:

If now 6 years, year of birth 2018 or 2019
If now 13 years, year of birth 2011 or 2012
If now 29 years, year of birth 1995 or 1996
If now 41 years, year of birth 1983 or 1984

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