132 years old now in 2024 - what year born?

Today, 12 September 2024 if a person is 132 years old now, what year was he born? See below:

If 132 years old, year of birth is:
1891 or 1892*

*It depends on whether he was born before or after 1 January 1892.

If now 132 years and his year of birth 1891 if he was born after 12 September 1891 until 31 december 1891 inclusively, and his year of birth is 1892 if he was born from 1 January 1892 to 12 September 1892.

Other examples:

If now 9 years, year of birth 2014 or 2015
If now 13 years, year of birth 2010 or 2011
If now 20 years, year of birth 2003 or 2004
If now 78 years, year of birth 1945 or 1946

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