Calculate the working hours between two dates and times. Enter a start and end datetime, your working hours and whether to include weekends to see total business hours, working days and non-working hours.
Enter the start and end date and time, your daily working window, and whether weekends count. The calculator adds up the working hours that fall inside your window between the two datetimes, counts the working days, and shows the non-working hours in between.
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A business hours calculator counts the working hours that fall inside your business day between two dates and times — ideal for SLAs, support response times and project effort estimates.
For each calendar day in the range, the calculator takes the overlap between that day's working window and the overall start-to-end interval, skipping weekends if required. Business hours are the sum of those overlaps; non-working hours are everything else in the span.
No — public holidays vary by region, so they aren't removed automatically. Subtract their working hours manually if needed.
The result will be zero or a dash. Make sure the end datetime is after the start datetime.