Date & time Age
Age verification calculator
Date of birth
On this date
Age on that date —
The same age, other ways
Exactly —
In months —
In weeks —
In days —
In hours —
Born on a —
Next birthday —
Days to go —
Turning —
Note Enter a date of birth
The threshold is met on the birthday itself
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Age on a date is complete years between the birth date and that date. Someone born on 23 August 2008 turns 18 on 23 August 2026 — on the day itself, not the day before or after.
How to check an age threshold
1 Enter the date of birth.
2 Set the date you are checking against — today by default.
3 Read the complete years.
4 The threshold is met on the birthday itself.
The common-law rule that a person attains an age at the start of the day before their birthday was abolished in England by the Family Law Reform Act 1969, and most jurisdictions now use the birthday itself. Where a threshold genuinely matters — alcohol, driving, contracts — the local statute is what governs, and it is worth checking rather than assuming, because a handful of jurisdictions still handle the boundary differently.
Questions
On their eighteenth birthday in most jurisdictions. A historical rule using the previous day was abolished in England in 1969.
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