144 years old now in 2023 - what year born?


Today, 23 September 2023 if a person is 144 years old now, what year was he born? See below:


If 144 years old, year of birth is:
1878 or 1879*
*It depends on whether he was born before or after 1 January 1879.


If now 144 years and his year of birth 1878 if he was born after 23 September 1878 until 31 december 1878 inclusively, and his year of birth is 1879 if he was born from 1 January 1879 to 23 September 1879.


Other examples:

If now 6 years, year of birth 2016 or 2017
If now 12 years, year of birth 2010 or 2011
If now 30 years, year of birth 1992 or 1993
If now 33 years, year of birth 1989 or 1990

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