116 years old now in 2023 - what year born?

Today, 10 June 2023 if a person is 116 years old now, what year was he born? See below:

If 116 years old, year of birth is:
1906 or 1907*

*It depends on whether he was born before or after 1 January 1907.

If now 116 years and his year of birth 1906 if he was born after 10 June 1906 until 31 december 1906 inclusively, and his year of birth is 1907 if he was born from 1 January 1907 to 10 June 1907.

Other examples:

If now 12 years, year of birth 2010 or 2011
If now 14 years, year of birth 2008 or 2009
If now 18 years, year of birth 2004 or 2005
If now 37 years, year of birth 1985 or 1986

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