Count calendar days between two dates, with an option to include both endpoints. A separate Monday-to-Friday count excludes weekends but does not subtract public holidays.
Elapsed days = absolute difference between calendar dates. Inclusive days = elapsed days + 1. Weekdays are counted by calendar weekday, not by local working rules.
From September 1 to September 10, 2026 there are 9 elapsed days or 10 days including both dates. If the two dates are the same, these modes return 0 and 1 respectively.
For reversed dates, the result states that the end precedes the start. Public holidays, local workweeks and legal deadline rules are not applied. Dates are processed consistently without daylight-saving hours changing the calendar-day count.
No. It counts Monday through Friday only. A public holiday on a weekday is still counted, so this should not be treated as a jurisdiction-specific business-day calculator.
One may include both dates while another excludes the start. Check the endpoint convention before comparing. This calculator lets you choose explicitly.
English edition: 16 September 2026.