142 years old now in 2023 - what year born?

Today, 27 March 2023 if a person is 142 years old now, what year was he born? See below:

If 142 years old, year of birth is:
1880 or 1881*

*It depends on whether he was born before or after 1 January 1881.

If now 142 years and his year of birth 1880 if he was born after 27 March 1880 until 31 december 1880 inclusively, and his year of birth is 1881 if he was born from 1 January 1881 to 27 March 1881.

Other examples:

If now 12 years, year of birth 2010 or 2011
If now 15 years, year of birth 2007 or 2008
If now 27 years, year of birth 1995 or 1996
If now 88 years, year of birth 1934 or 1935

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