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A date addition calculator adds or subtracts days, weeks, months, or years from a given date to find a resulting date. Useful for calculating deadlines (30 days from today), due dates, warranties (12 months from purchase date), and scheduling. Month addition is ambiguous for months 29–31 days.

Stapsgewijze handleiding

  1. 1Enter base date and interval
  2. 2Add specified days/months/years
  3. 3Return new date

Uitgewerkte voorbeelden

Invoer
Jan 1, 2026 + 90 days
Resultaat
April 1, 2026
Accounts for leap years

Veelgemaakte fouten om te vermijden

  • Not double-checking results
  • Ignoring edge cases

Veelgestelde vragen

What does this calculator do?

Input values

How do I use this calculator?

System calculates

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Instellingen

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