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 Sunday, December 7, 1941
Added 59 years, 7 months, 7 weeks, 17 days
Normalized to 59 years, 7 months, 66 days

Result: Tuesday, September 11, 2001

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Help and example use

Date Calculators

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