Date & Time

Time Duration Calculator

Find elapsed hours and minutes between two clock times.

Results are provided for general informational use. Verify important financial, health or legal figures before relying on them.

About this Time Duration Calculator

The Time Duration Calculator measures elapsed time between two clock times. If the end time is earlier than the start time, it assumes the interval crosses midnight, which makes it useful for shifts, travel and event timing.

How the calculation works

Both times are converted to minutes after midnight. When the end is earlier, 24 hours are added to the end before subtraction.

How to use it

  1. Enter the start time.
  2. Enter the end time.
  3. Calculate to see total minutes and hours/minutes.

Practical example

From 22:30 to 01:15, the calculator treats the interval as overnight and returns 2 hours 45 minutes.

Frequently asked questions

Can it handle overnight durations?

Yes. An earlier end time is treated as the next day.

Does it include seconds?

No. This version works with hours and minutes.

Can it calculate more than 24 hours?

No. Use dates as well if you need multi-day durations.

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