119 years old now in 2025 - what year born?

Today, 22 April 2025 if a person is 119 years old now, what year was he born? See below:

If 119 years old, year of birth is:
1905 or 1906*

*It depends on whether he was born before or after 1 January 1906.

If now 119 years and his year of birth 1905 if he was born after 22 April 1905 until 31 december 1905 inclusively, and his year of birth is 1906 if he was born from 1 January 1906 to 22 April 1906.

Other examples:

If now 9 years, year of birth 2015 or 2016
If now 18 years, year of birth 2006 or 2007
If now 25 years, year of birth 1999 or 2000
If now 71 years, year of birth 1953 or 1954

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