144 years old now in 2024 - what year born?

Today, 4 December 2024 if a person is 144 years old now, what year was he born? See below:

If 144 years old, year of birth is:
1879 or 1880*

*It depends on whether he was born before or after 1 January 1880.

If now 144 years and his year of birth 1879 if he was born after 4 December 1879 until 31 december 1879 inclusively, and his year of birth is 1880 if he was born from 1 January 1880 to 4 December 1880.

Other examples:

If now 10 years, year of birth 2013 or 2014
If now 12 years, year of birth 2011 or 2012
If now 18 years, year of birth 2005 or 2006
If now 48 years, year of birth 1975 or 1976

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