Days between dates calculator

Count the days between two dates, with weeks, months, years and business days (Monday to Friday).

Count the days between any two dates, for deadlines, trips, pregnancies, contracts or just curiosity. You'll also see the business days and the span in weeks, months and years.

How to use this calculator

  1. Pick the start date.
  2. Pick the end date.
  3. Tick 'Include the end date' if both days should count, such as for a hotel stay or an event.

How it's calculated

The calculator counts calendar days from the start date to the end date. By default the end date isn't included, so Monday to Friday is 4 days. Business days count Monday to Friday only, not public holidays.

Frequently asked questions

Does it include the start and end date?

It counts from the start date up to, but not including, the end date. Tick 'Include the end date' to add one day.

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