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CodexValley

Date Difference Calculator

Available

Count the days, weeks, months and weekdays between two dates, for deadlines, notice periods and plans.

Use the calculator

The numbers below are examples. Replace them with yours. Everything is worked out in your browser.

About this calculator

Pick two dates to see how many days lie between them, how that looks in weeks and in years, months and days, and how many weekdays it contains. It is useful for deadlines, notice periods and project plans.

How it works

  • The result counts the days from the start date up to, but not including, the end date.
  • Weekdays are Monday to Friday. The start date is counted and the end date is not. Public holidays are not taken off.
  • If the end date is earlier than the start date, the two dates are swapped.

Common questions

Is the end date included?

No. 1 January to 31 January is 30 days. Add one day if you want to count both ends.

Does it count public holidays?

No. It counts weekdays only. Take off holidays yourself for a working-day count.

Estimates only. Check important numbers before you rely on them.