9 years old now in 2021 - what year born?


Today, 7 May 2021 if a person is 9 years old now, what year was he born? See below:


If 9 years old, year of birth is:
2011 or 2012*
*It depends on whether he was born before or after 1 January 2012.


If now 9 years and his year of birth 2011 if he was born after 7 May 2011 until 31 december 2011 inclusively, and his year of birth is 2012 if he was born from 1 January 2012 to 7 May 2012.


Other examples:

If now 6 years, year of birth 2014 or 2015
If now 12 years, year of birth 2008 or 2009
If now 19 years, year of birth 2001 or 2002
If now 85 years, year of birth 1935 or 1936

HTML code:
BB code:

More: