Time Calculator

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

Add or subtract durations made up of hours, minutes, and seconds, or calculate the elapsed time between two clock times.

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Time Calculator tool

How to Use Time Calculator

  1. Choose 'Add/Subtract' or 'Duration Between'.
  2. Enter the times or durations.
  3. View the result.

Features

  • Add or subtract hours/minutes/seconds
  • Duration between two times
  • Handles times crossing midnight
  • Instant results

Frequently Asked Questions

Can this handle a duration that crosses midnight?

Yes, durations that span past midnight are calculated correctly.