Time Duration Calculator

Add or subtract hours, minutes and seconds — perfect for timesheets, logging work hours and event timing.

Start — hoursh

Start — minutesmin

End — hoursh

End — minutesmin

Duration (hours)

8.50

Last updated: 2026-08-30

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FAQ

How do I handle overnight shifts?

If the end time is earlier than the start time, this calculator automatically assumes the shift crossed midnight and adds 24 hours.

How do timesheet breaks work?

Enter the unpaid break length in minutes — it is subtracted before computing hours and pay. Paid breaks can be left at 0.

How do I total a whole week of shifts?

Compute each day's net hours (after breaks), sum them, then divide by 60 for decimal hours or format as h:mm for payroll.

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