Age on Official Forms: Why Two Records Disagree
Age last birthday, age at an event, age nearest birthday: three conventions that explain why one birth date gives different numbers on…
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Age last birthday, age at an event, age nearest birthday: three conventions that explain why one birth date gives different numbers on…
Read guideA 29 February birthday, a birth just before midnight abroad, twins with different dates: how age arithmetic handles the cases that break…
Read guideSubtracting birth years is the easy part. The months and days need a borrow rule, a month length you have to look…
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