135 years old now in 2025 - what year born?

Today, 20 March 2025 if a person is 135 years old now, what year was he born? See below:

If 135 years old, year of birth is:
1889 or 1890*

*It depends on whether he was born before or after 1 January 1890.

If now 135 years and his year of birth 1889 if he was born after 20 March 1889 until 31 december 1889 inclusively, and his year of birth is 1890 if he was born from 1 January 1890 to 20 March 1890.

Other examples:

If now 4 years, year of birth 2020 or 2021
If now 14 years, year of birth 2010 or 2011
If now 22 years, year of birth 2002 or 2003
If now 88 years, year of birth 1936 or 1937

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