111 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 111 years old now, what year was he born? See below:

If 111 years old, year of birth is:
1914 or 1915*

*It depends on whether he was born before or after 1 January 1915.

If now 111 years and his year of birth 1914 if he was born after 28 October 1914 until 31 december 1914 inclusively, and his year of birth is 1915 if he was born from 1 January 1915 to 28 October 1915.

Other examples:

If now 7 years, year of birth 2018 or 2019
If now 17 years, year of birth 2008 or 2009
If now 23 years, year of birth 2002 or 2003
If now 38 years, year of birth 1987 or 1988

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