150 years old now in 2024 - what year born?

Today, 14 October 2024 if a person is 150 years old now, what year was he born? See below:

If 150 years old, year of birth is:
1873 or 1874*

*It depends on whether he was born before or after 1 January 1874.

If now 150 years and his year of birth 1873 if he was born after 14 October 1873 until 31 december 1873 inclusively, and his year of birth is 1874 if he was born from 1 January 1874 to 14 October 1874.

Other examples:

If now 12 years, year of birth 2011 or 2012
If now 17 years, year of birth 2006 or 2007
If now 20 years, year of birth 2003 or 2004
If now 66 years, year of birth 1957 or 1958

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