150 years old now in 2023 - what year born?

Today, 26 September 2023 if a person is 150 years old now, what year was he born? See below:

If 150 years old, year of birth is:
1872 or 1873*

*It depends on whether he was born before or after 1 January 1873.

If now 150 years and his year of birth 1872 if he was born after 26 September 1872 until 31 december 1872 inclusively, and his year of birth is 1873 if he was born from 1 January 1873 to 26 September 1873.

Other examples:

If now 12 years, year of birth 2010 or 2011
If now 14 years, year of birth 2008 or 2009
If now 27 years, year of birth 1995 or 1996
If now 69 years, year of birth 1953 or 1954

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