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Date Calculator

Add to or subtract from a date. Choose a start date, select add/subtract, pick a unit (days, weeks, months), and get the resulting date in your locale.

Date Calculator

Related Date Calculations

How to use this date calculator

  1. Select or input a date (or quick-fill with today).
  2. Choose whether to add to or subtract from the date.
  3. Enter a value and select the unit (days, weeks, or months).
  4. Click Calculate to see the result formatted for your locale.

Notes

  • Month calculations follow calendar months. If the target month has fewer days, the result may roll to the last valid day of that month.
  • Results are formatted using your selected locale from the URL.