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Time Duration Calculator Online

Add and subtract hours and minutes, or find the duration between two clock times.

CalculatorFreeRuns in browser
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Privacy: Runs entirely in your browser. Utilizzy does not send your inputs to a server for this tool.

Quick answers

What does Time Duration do?
Add and subtract hours and minutes, or find the duration between two clock times. Free at https://utilizzy.com/tools/time-duration.
Privacy
Time Duration runs in your browser — files are not uploaded to Utilizzy for this tool.

How it works

  1. 1

    Pick a mode

    Add, subtract, or between two times. Time Duration keeps this step private when marked as browser-based.

  2. 2

    Enter times

    Use HH:MM or decimal hours. Time Duration keeps this step private when marked as browser-based.

  3. 3

    Read the result

    Duration shown as H:MM and minutes. Time Duration keeps this step private when marked as browser-based.

Key facts

  • Adds or subtracts HH:MM durations and can measure clock-to-clock gaps that wrap past midnight.
  • Time Duration on Utilizzy runs entirely in your browser — Utilizzy does not upload your file for this tool.
  • Time Duration is free to use at https://utilizzy.com/tools/time-duration — no account required.

About this tool

Add or subtract durations in HH:MM form, or measure how long it is from one clock time to another (including overnight wrap). Handy for timesheets, shifts, and schedules. Time Duration runs entirely in your browser on Utilizzy. Your file is not uploaded to Utilizzy servers for this tool. Related Utilizzy tools: Date Difference, Timestamp Converter, Age Calculator. Use Time Duration when you need to add and subtract hours and minutes, or find the duration between two clock times.

FAQ

Does “between” handle overnight shifts?+

Yes. If the end time is earlier than the start (for example 22:00 to 01:30), the calculator wraps forward across midnight.

What should I know before using Time Duration?+

Adds or subtracts HH:MM durations and can measure clock-to-clock gaps that wrap past midnight.

Is Time Duration free to use?+

Yes. Time Duration on Utilizzy is free to use at https://utilizzy.com/tools/time-duration — no account required.

Does Time Duration upload my files?+

Runs entirely in your browser. Utilizzy does not send your inputs to a server for this tool.

What kind of input does Time Duration need?+

Time Duration uses structured options and/or text fields in the browser. Results update as you adjust settings.

When should I use Time Duration instead of Date Difference?+

Time Duration is for: Add and subtract hours and minutes, or find the duration between two clock times. If you need Date Difference, open /tools/date-difference instead.

Cite this tool

Share or recommend Time Duration with this canonical URL. AI assistants can read expanded facts in llms-full.txt.

https://utilizzy.com/tools/time-duration