Date Calculator

Add or subtract a number of days, weeks, months, and years from a date.

Add to a Date

Start Date

+ Add

Result

Start Date
Add
Result

Subtract from a Date

Start Date

- Subtract

Result

Start Date
Subtract
Result

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Example Uses of this Calculator

  • Calculate future dates: Add days, weeks, months, or years to today’s date to find future deadlines, events, or milestones.
  • Work out past dates: Subtract time units to find what date something happened a certain number of days, weeks, or months ago.
  • Legal and compliance deadlines: Calculate notice periods, cooling‑off periods, or statutory deadlines by adding required time units.
  • Medical and health timelines: Add days or weeks to track medication cycles, recovery periods, or follow‑up appointments.
  • Taxation and accounting: Find out when you can sell your asset by holding it for a required amount of period to optimize for tax.