88 years old now in 2025 - what year born?

Today, 6 November 2025 if a person is 88 years old now, what year was he born? See below:

If 88 years old, year of birth is:
1936 or 1937*

*It depends on whether he was born before or after 1 January 1937.

If now 88 years and his year of birth 1936 if he was born after 6 November 1936 until 31 december 1936 inclusively, and his year of birth is 1937 if he was born from 1 January 1937 to 6 November 1937.

Other examples:

If now 7 years, year of birth 2017 or 2018
If now 15 years, year of birth 2009 or 2010
If now 25 years, year of birth 1999 or 2000
If now 57 years, year of birth 1967 or 1968

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