114 years old now in 2023 - what year born?

Today, 26 March 2023 if a person is 114 years old now, what year was he born? See below:

If 114 years old, year of birth is:
1908 or 1909*

*It depends on whether he was born before or after 1 January 1909.

If now 114 years and his year of birth 1908 if he was born after 26 March 1908 until 31 december 1908 inclusively, and his year of birth is 1909 if he was born from 1 January 1909 to 26 March 1909.

Other examples:

If now 8 years, year of birth 2014 or 2015
If now 16 years, year of birth 2006 or 2007
If now 26 years, year of birth 1996 or 1997
If now 88 years, year of birth 1934 or 1935

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