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Time Duration Calculator

Find duration between two dates and times

About the Time Duration Calculator

The Time Duration Calculator finds the exact time between two dates and times, breaking the result down into days, hours and minutes. It's useful for tracking project timelines, counting down to an event, or working out exactly how long has passed since a given moment.

How to Calculate a Duration

  1. Enter a start date and time, or click Use Now as Start.
  2. Enter an end date and time.
  3. Click Calculate Duration to see the full breakdown.

Key Features

  • One-click "Use Now" for the start time
  • Full breakdown in days, hours and minutes
  • Works across any date range
  • Instant, real-time results

FAQ

Can I calculate the time until a future date?

Yes, set the start as now and the end as your target date to see the countdown.

Does it account for time zones?

The calculation uses the local time you enter for both start and end.

Can I calculate a duration spanning multiple years?

Yes, the tool works across any date range, however long.

Is my data stored anywhere?

No, all calculations happen entirely in your browser.