84 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 84 years old now, what year was he born? See below:

If 84 years old, year of birth is:
1941 or 1942*

*It depends on whether he was born before or after 1 January 1942.

If now 84 years and his year of birth 1941 if he was born after 28 October 1941 until 31 december 1941 inclusively, and his year of birth is 1942 if he was born from 1 January 1942 to 28 October 1942.

Other examples:

If now 12 years, year of birth 2013 or 2014
If now 16 years, year of birth 2009 or 2010
If now 30 years, year of birth 1995 or 1996
If now 93 years, year of birth 1932 or 1933

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