130 years old now in 2024 - what year born?

Today, 12 September 2024 if a person is 130 years old now, what year was he born? See below:

If 130 years old, year of birth is:
1893 or 1894*

*It depends on whether he was born before or after 1 January 1894.

If now 130 years and his year of birth 1893 if he was born after 12 September 1893 until 31 december 1893 inclusively, and his year of birth is 1894 if he was born from 1 January 1894 to 12 September 1894.

Other examples:

If now 6 years, year of birth 2017 or 2018
If now 17 years, year of birth 2006 or 2007
If now 30 years, year of birth 1993 or 1994
If now 58 years, year of birth 1965 or 1966

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