70 years old now in 2023 - what year born?

Today, 30 November 2023 if a person is 70 years old now, what year was he born? See below:

If 70 years old, year of birth is:
1952 or 1953*

*It depends on whether he was born before or after 1 January 1953.

If now 70 years and his year of birth 1952 if he was born after 30 November 1952 until 31 december 1952 inclusively, and his year of birth is 1953 if he was born from 1 January 1953 to 30 November 1953.

Other examples:

If now 7 years, year of birth 2015 or 2016
If now 14 years, year of birth 2008 or 2009
If now 24 years, year of birth 1998 or 1999
If now 55 years, year of birth 1967 or 1968

HTML code:

BB code: