31 years old now in 2025 - what year born?


Today, 11 February 2025 if a person is 31 years old now, what year was he born? See below:


If 31 years old, year of birth is:
1993 or 1994*
*It depends on whether he was born before or after 1 January 1994.


If now 31 years and his year of birth 1993 if he was born after 11 February 1993 until 31 december 1993 inclusively, and his year of birth is 1994 if he was born from 1 January 1994 to 11 February 1994.


Other examples:

If now 10 years, year of birth 2014 or 2015
If now 12 years, year of birth 2012 or 2013
If now 24 years, year of birth 2000 or 2001
If now 76 years, year of birth 1948 or 1949

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