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Calculatrice de durée

Time duration calculator: get duration from start end with multi-segment sum and unit conversion for scheduling, with one-click copy, offline.

Mode d'emploi

Saisissez l'heure de début et de fin, puis cochez le passage de minuit si nécessaire. La durée et les heures décimales sont calculées en temps réel.

Overview

Time Duration Calculator is a Time tool. Get duration from start end with multi-segment sum and unit conversion for scheduling, with one-click copy, offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Time Duration Calculator: Enter start and end times, tick overnight if needed. Duration and decimal hours update live. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Time Duration Calculator offline or on poor network — all calculations stay local and private.
  • Exact age and total days
  • Date diff and workdays

How to use

  1. 1 Enter start and end times, tick overnight if needed. Duration and decimal hours update live..
  2. 2 Toggle inclusive and workdays
  3. 3 View weeks/months/hours breakdown
  4. 4 Copy or add to calendar

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Feb 29 birthdays vary by locale
  • Seconds vs milliseconds timestamps
  • Workdays need holiday data

FAQ

Lunar supported?
Yes, lunar input auto-converts to Gregorian.
Why different ages?
Years-old vs nominal age differ by region.
How is Time Duration Calculator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “time duration, decimal hours” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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