90 years old now in 2025 - what year born?


Today, 19 April 2025 if a person is 90 years old now, what year was he born? See below:


If 90 years old, year of birth is:
1934 or 1935*
*It depends on whether he was born before or after 1 January 1935.


If now 90 years and his year of birth 1934 if he was born after 19 April 1934 until 31 december 1934 inclusively, and his year of birth is 1935 if he was born from 1 January 1935 to 19 April 1935.


Other examples:

If now 6 years, year of birth 2018 or 2019
If now 12 years, year of birth 2012 or 2013
If now 20 years, year of birth 2004 or 2005
If now 88 years, year of birth 1936 or 1937

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