2012 year born – age now in 2025?

How old am I in 2025 if I was born in 2012? Today's date is - 19 December 2025.

If year of birth - 2012, he is now:
12 years old or 13 years old*

*Depends on before or after 19 December 2012 year he was born.

If a person was born from January 1 2012 to 19 December 2012 inclusively, he is 13 years old now, otherwise, if after 19 December 2012 (until December 31 2012 inclusively), then he is still 12 years old now.

Other examples:

If 1922 year of birth - already 103 years or still 102 years.
If 1953 year of birth - already 72 years or still 71 years.
If 1982 year of birth - already 43 years or still 42 years.
If 2005 year of birth - already 20 years or still 19 years.

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