103 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 103 years old now, what year was he born? See below:

If 103 years old, year of birth is:
1922 or 1923*

*It depends on whether he was born before or after 1 January 1923.

If now 103 years and his year of birth 1922 if he was born after 28 October 1922 until 31 december 1922 inclusively, and his year of birth is 1923 if he was born from 1 January 1923 to 28 October 1923.

Other examples:

If now 4 years, year of birth 2021 or 2022
If now 17 years, year of birth 2008 or 2009
If now 19 years, year of birth 2006 or 2007
If now 70 years, year of birth 1955 or 1956

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