Given input of {{Age|BirthYear|BirthMonth|BirthDay}} This age template does a pretty simple calculation that goes something like...

(Current Year - Birth year) - 1 if current month is before birth month or it's the birth month and current day is before birth day

  1. If you don't want the current age but age at a predetermined target point, give input in the form of {{Age|BirthYear|BirthMonth|BirthDay|TargetYear|TargetMonth|TargetDay}}
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