Hours Calculator

The Hours Calculator finds the exact number of hours and minutes between a start date/time and an end date/time. Use it for work shifts, travel duration, event planning, and billing. Related tools: Find Time Difference, Seconds to Hours Converter, and Time Converter.

How to Use the Hours Calculator

Enter the start date and start time.
Enter the end date and end time.
Read the total hours and minute breakdown instantly.

Common Examples

9:00 AM to 5:00 PM on the same day = 8 hours
10:30 PM to 6:00 AM the next day = 7.5 hours
Monday 8:00 AM to Wednesday 12:00 PM = 52 hours

Frequently Asked Questions

Can the end time be on a different date than the start time?

Yes. Enter separate start and end dates to calculate durations that span multiple days.

What happens if the end time is earlier than the start time?

The calculator expects the end date and time to be after the start date and time. If not, it shows a validation message instead of a result.

Does this include minutes in the result?

Yes. The tool shows total hours with decimals and a readable hours-and-minutes breakdown.

Can I use this for payroll or timesheet calculations?

Yes. Enter clock-in and clock-out date/time values to get exact worked hours for a shift or project.

How is this different from the find time difference tool?

This hours calculator uses date and time inputs for multi-day durations. The find time difference tool focuses on time-of-day values within a single day context.

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Hours Calculator