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Calculate Work Hours Worked
Add up your hours across the day to log time spent on tasks or to invoice clients.
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Formats: HH:MM:SS (e.g. 01:30:45) or HH:MM (e.g. 02:15)
Result
02:15:30
2h 15m 30s · 8130 seconds total
135.50
minutes
2.258
hours
8,130
seconds
Work Hours tips
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For freelance time tracking, add up multiple session durations from a project to invoice exactly.
💡
For weekly time logs, sum each day's totals into a weekly grand total.
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Use "Time between" mode to calculate hours from clock-in to clock-out.
Hoe het werkt
1
Invoer
Enter your data into the tool above. Everything stays local to your browser.
2
Verwerken
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Downloaden
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
Waarom de onze?
✓Volledig gratis — geen verborgen kosten, ooit
✓Geen account, e-mail of aanmelding vereist
✓Bestanden verlaten nooit je apparaat
✓Absoluut geen bestandsgroottelimieten
✓Geen watermerken op uitvoer