2 years old now in 2025 - what year born?

Today, 18 January 2025 if a person is 2 years old now, what year was he born? See below:

If 2 years old, year of birth is:
2022 or 2023*

*It depends on whether he was born before or after 1 January 2023.

If now 2 years and his year of birth 2022 if he was born after 18 January 2022 until 31 december 2022 inclusively, and his year of birth is 2023 if he was born from 1 January 2023 to 18 January 2023.

Other examples:

If now 8 years, year of birth 2016 or 2017
If now 14 years, year of birth 2010 or 2011
If now 18 years, year of birth 2006 or 2007
If now 79 years, year of birth 1945 or 1946

HTML code:

BB code: