Date calculator: Add to or subtract from a date

This service enables you to add or subtract days, months and years to a date to calculate a past or future date.

Design changes: What is new and why?

Start Date



From Tuesday, January 1, 1963
Added 7 months, 7 weeks, 64 days
Normalized to 7 months, 113 days

Result: Friday, November 22, 1963

If the larger units (months/years) are added before the smaller units (days).

Alternative result: Sunday, November 24, 1963

If the smaller units (days) are added first

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Help and example use

Date Calculators

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