2 years old now in 2026 - what year born?

Today, 28 October 2026 if a person is 2 years old now, what year was he born? See below:

If 2 years old, year of birth is:
2023 or 2024*

*It depends on whether he was born before or after 1 January 2024.

If now 2 years and his year of birth 2023 if he was born after 28 October 2023 until 31 december 2023 inclusively, and his year of birth is 2024 if he was born from 1 January 2024 to 28 October 2024.

Other examples:

If now 6 years, year of birth 2019 or 2020
If now 16 years, year of birth 2009 or 2010
If now 30 years, year of birth 1995 or 1996
If now 48 years, year of birth 1977 or 1978

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