141 years old now in 2025 - what year born?

Today, 20 March 2025 if a person is 141 years old now, what year was he born? See below:

If 141 years old, year of birth is:
1883 or 1884*

*It depends on whether he was born before or after 1 January 1884.

If now 141 years and his year of birth 1883 if he was born after 20 March 1883 until 31 december 1883 inclusively, and his year of birth is 1884 if he was born from 1 January 1884 to 20 March 1884.

Other examples:

If now 3 years, year of birth 2021 or 2022
If now 15 years, year of birth 2009 or 2010
If now 19 years, year of birth 2005 or 2006
If now 79 years, year of birth 1945 or 1946

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