Time Duration Calculator
Calculate the exact duration between two times or two dates. Get hours, minutes, and seconds.
Duration
08:30:00
HH:MM:SS
Days
0.35
Hours
8.5000
Minutes
510.00
Seconds
30,600
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Time Duration Calculator really free?
Yes. Time Duration Calculator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Time Duration Calculator upload my data?
No. Time Duration Calculator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Time Duration Calculator is ready to use on desktop or mobile.
Does Time Duration Calculator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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