Once your birthday occurs in 2023, you'll be 26 years old. To know how old is someone born in 1997:
Subtract the current year from the birth year:
Current year - Birth year = 2023 - 1997 = 26 years
Look at your birthday: If your birthday didn't occur this year yet, you are still 25 years old. Once this happens, you'll finally be 26.
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