Question 1

Are these tools free to use?

Accepted Answer

Yes, all our calculators and converters are completely free to use. No registration required, no hidden fees, and no limitations on usage. We believe everyone should have access to professional-grade tools.

Question 2

Do you store my calculation data?

Accepted Answer

No, we prioritize your privacy. All calculations are performed locally in your browser. We don't store, transmit, or have access to any data you enter into our tools.

Question 3

What's the difference between total duration and working hours?

Accepted Answer

Total duration includes all time between start and end, including nights and weekends. Working hours only counts business hours (typically 9 AM to 5 PM, Monday to Friday).

Question 4

Can I calculate duration across different dates?

Accepted Answer

Yes! You can calculate duration between any two dates and times, whether they're on the same day or months apart.

Question 5

How are working hours calculated?

Accepted Answer

Working hours are calculated based on a standard 8-hour workday (9 AM to 5 PM) and 5-day work week (Monday to Friday), excluding weekends.

Question 6

What if the end time is before the start time?

Accepted Answer

If you enter an end time before the start time on the same date, the calculator assumes the end time is on the following day.

Question 7

Can I use this for time tracking?

Accepted Answer

Absolutely! This tool is perfect for tracking work hours, project time, break durations, and any time interval you need to measure.

Duration Calculator