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Date Difference Calculator

Count the days between two dates, and the difference in years, months, weeks and days, with or without the end date.

  • Runs in your browser
  • Works on mobile
  • In: Start date, End date
  • Out: Years, months, days, Total days, WEEKS
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About Date Difference Calculator

Pick two dates to see how far apart they are: in years, months and days, and in total days and weeks. Tick "Include the end date" when both days should count - 1 to 31 January is then 31 days rather than 30.

Dates are whole calendar days, so there is no time of day or time zone to trip over. Months are counted the same way as in the Date Calculator, so adding the result to the first date gives the second.

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