Time & Date

How to Calculate Time Durations

Step-by-step guide to adding up hours, minutes, and seconds using the DevHexLab Duration Calculator.

Tool Used

Duration Calculator

Open tool
1

Open the Duration Calculator

Navigate to /tools/time/duration-calculator.

2

Enter start and end times

Type or select a start time and an end time. The tool accepts times in HH:MM:SS format.

3

Add multiple segments

If you need to total up several time segments (for example, tracking work hours across multiple tasks), add each segment and the tool sums them.

4

Read the total

The total duration is displayed in hours, minutes, and seconds. You can also see the result expressed as a decimal number of hours for timesheet use.

All done!

You are ready to use Duration Calculator like a pro.

Try it now
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