Date Computation Formula

Date Computation Formula

The formula calculates the difference in Years between two Dates. For example,
the formula below calculates your Age by subtracting Today's date from your
Birthday. Don't forget to add your Birthday field to a form or it won't work.
REM "Required Field(s): Birthday ";

@If(@Month(@Today) > @Month(Birthday); @Year(@Today) - @Year(Birthday);
@If(@Day(@Today) < @Day(Birthday);
(@Year(@Today) - @Year(Birthday)) - 1; @If(Birthday = ""; "Ageless";
@Year(@Today) - @Year(Birthday))))

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This was first published in November 2000

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