114 years old now in 2025 - what year born?

Today, 19 December 2025 if a person is 114 years old now, what year was he born? See below:

If 114 years old, year of birth is:
1910 or 1911*

*It depends on whether he was born before or after 1 January 1911.

If now 114 years and his year of birth 1910 if he was born after 19 December 1910 until 31 december 1910 inclusively, and his year of birth is 1911 if he was born from 1 January 1911 to 19 December 1911.

Other examples:

If now 3 years, year of birth 2021 or 2022
If now 12 years, year of birth 2012 or 2013
If now 27 years, year of birth 1997 or 1998
If now 93 years, year of birth 1931 or 1932

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