102 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 102 years old now, what year was he born? See below:

If 102 years old, year of birth is:
1923 or 1924*

*It depends on whether he was born before or after 1 January 1924.

If now 102 years and his year of birth 1923 if he was born after 28 October 1923 until 31 december 1923 inclusively, and his year of birth is 1924 if he was born from 1 January 1924 to 28 October 1924.

Other examples:

If now 3 years, year of birth 2022 or 2023
If now 15 years, year of birth 2010 or 2011
If now 19 years, year of birth 2006 or 2007
If now 72 years, year of birth 1953 or 1954

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