Calculators & Finance tool

Date & Duration Calculator

See elapsed days and an inclusive date count, alongside weekday and weekend totals for the same period.

Weekdays means Monday through Friday; public holidays are not excluded.

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Distinguish elapsed from inclusive days

  • Choose two dates

    Set the start and end dates, then calculate. The end date must not be earlier than the start.

  • Read elapsed days

    Elapsed days is the difference between the dates. The same date gives zero; the next date gives one.

  • Read inclusive totals

    Inclusive days, weekdays, and weekend days count both endpoints. Check holidays and other days off separately if you need working days.

Count a calendar week

Start with
Start: 2026-10-01 · end: 2026-10-07
Check the result
6 elapsed days · 7 inclusive days · 5 weekdays · 2 weekend days

The five weekdays are counted by day of the week, whether or not a public holiday falls in the range.