Time Duration Calculator
FreeAdd or subtract time durations and calculate total hours and minutes
About Time Duration Calculator
Adding up hours and minutes by hand is fiddly, especially when minutes roll over into another hour. A time duration calculator does it for you: add or subtract durations and get the total in hours and minutes without the mental gymnastics of carrying over 60s.
Enter the durations you want to combine or take away, and the tool returns a clean total. It works in your browser, free and instantly, with no signup. This is handy for tallying hours worked, totaling time across several tasks, working out how long a series of activities will take, or figuring the gap between two durations. It keeps the arithmetic accurate so you can trust the result at a glance.
Common uses
- Adding up hours worked across several shifts or tasks
- Totaling the time spent on a multi-step activity
- Subtracting one duration from another to find the difference
- Estimating how long a sequence of activities will take
- Combining timed segments into a single total
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- 100% Free — no account needed
- Works in your browser — no software required
- Instant results
- Secure and private
- No data stored
- Simple to use
FAQ
Can I both add and subtract durations?
Yes. You can add durations together or subtract one from another to get a total in hours and minutes.
Does it handle minutes that roll over into hours?
Yes. The calculator manages the carrying over of minutes into hours automatically for an accurate total.
Is this the same as a date difference calculator?
No. This works with durations like hours and minutes, while a date difference tool measures the gap between two calendar dates.
Can I use Time Duration Calculator on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.