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Duration Calculator

Calculate time duration between timestamps

100% Private: All processing happens in your browser. No data is sent to any server.
Select start and end times to calculate duration
Use Case: Calculate elapsed time between events, measure task durations, or determine time differences for scheduling.

What is Duration Calculator?

Calculate time duration between two timestamps. Get results in days, hours, minutes, seconds, and milliseconds with formatted output.

How to Use

  1. Select start date and time
  2. Select end date and time
  3. View duration breakdown in all units
  4. See formatted duration string
  5. Copy any result for documentation or reports

Common Use Cases

  • Measuring task completion time
  • Calculating project duration
  • Tracking time spent on activities
  • Determining elapsed time for events
  • Generating time reports

Why Use Our Duration Calculator?

✅ 100% Client-Side Processing

All processing happens in your browser. Your data never leaves your device.

🚀 Fast & Instant

No server delays. Process your data instantly without waiting.

🔒 Completely Secure

No data sent to servers means no risk of data breaches or leaks.

💰 Free Forever

No registration, no limits, no hidden costs. Use as much as you need.

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