Time Duration Calculator
Hours and minutes between two times, and add or subtract durations.
Duration
7 h 30 min
after a 60 min break
Total minutes
450
Decimal hours
7.5
As days
0.3125
ShowHide the working
- 109:00 to 17:30
- 2less 60 min break
- 3= 7 h 30 min
Formula
duration = end − start − breakHow it works
Hours and minutes between two clock times, minus any break — a quick timesheet. Handles shifts that cross midnight.
Example
09:00 to 17:30 with a 60-minute break is 7 h 30 min.
About the Time Duration Calculator
Hours and minutes between two times, and add or subtract durations. It sits in the Date & Time section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the Time Duration Calculator free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The Time Duration Calculator runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the Time Duration Calculator on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Date & Time?
- Ages, durations, business days, countdowns and time zones. You can browse the full Date & Time category for related calculators.