2018 year born – age now in 2025?

How old am I in 2025 if I was born in 2018? Today's date is - 19 December 2025.

If year of birth - 2018, he is now:
6 years old or 7 years old*

*Depends on before or after 19 December 2018 year he was born.

If a person was born from January 1 2018 to 19 December 2018 inclusively, he is 7 years old now, otherwise, if after 19 December 2018 (until December 31 2018 inclusively), then he is still 6 years old now.

Other examples:

If 1943 year of birth - already 82 years or still 81 years.
If 1953 year of birth - already 72 years or still 71 years.
If 1978 year of birth - already 47 years or still 46 years.
If 2000 year of birth - already 25 years or still 24 years.

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