◷Dates / FREE ONLINE TOOL

Time Duration Calculator

Free time duration calculator for work shifts, meetings and breaks. Find elapsed hours, minutes and decimal hours between two clock times, including overnight periods.

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◈ On-device processing
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How to use this tool

Choose a start time, finish time and any unpaid break minutes. The tool shows total elapsed time, break time, net hours and decimal hours. End times earlier than the start are treated as the following day.

Quick steps

  1. Enter a start time and finish time, including overnight shifts if needed.
  2. Set any unpaid break minutes.
  3. Read total and net hours in hours, minutes and decimal notation.

Practical tip

The tool compares clock times on an assumed 24-hour timeline and does not account for daylight-saving changes between calendar dates. For payroll, follow your employer's time rounding rules.

Common questions

Can I calculate an overnight shift?

Yes. A finish time earlier than the start time is treated as taking place on the next day.

Can I subtract lunch breaks?

Yes. Enter unpaid break minutes to subtract from elapsed time.

Does it handle daylight saving time?

No. This clock-time utility assumes a continuous 24-hour day rather than a specific time zone and dated shift.

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