13 years old now in 2021 - what year born?


Today, 29 November 2021 if a person is 13 years old now, what year was he born? See below:


If 13 years old, year of birth is:
2007 or 2008*
*It depends on whether he was born before or after 1 January 2008.


If now 13 years and his year of birth 2007 if he was born after 29 November 2007 until 31 december 2007 inclusively, and his year of birth is 2008 if he was born from 1 January 2008 to 29 November 2008.


Other examples:

If now 4 years, year of birth 2016 or 2017
If now 12 years, year of birth 2008 or 2009
If now 21 years, year of birth 1999 or 2000
If now 50 years, year of birth 1970 or 1971

HTML code:
BB code:

More: