Time duration calculator
How long is it from one time to another? Get the answer in hours and minutes, in decimal, and in minutes.
Two ways to use it
Between two times. Enter a start time and an end time, and take off any break. Good for a shift, a meeting, or a task.
Between two dates. Enter a start date and time and an end date and time. Good for anything that runs over several days, like how long a ticket was open.
Examples
- 9:15 AM to 5:40 PM is 8:25, or 8.42 hours.
- 10:00 PM to 6:30 AM with a 30-minute break is 8:00.
- Monday 9:00 AM to Thursday 2:00 PM is 3 days, 5 hours, or 77 hours.
Why the decimal number is useful
If you bill by the hour or enter hours into payroll, you need a decimal: 8:25 is 8.42 hours, not 8.25. Divide the minutes by 60 to convert.
Where M-Tracker fits
Working out durations by hand is fine for one shift. In M-Tracker each task has a timer, so how long things took is recorded as you work and kept with the task. That history is what makes the next estimate better.
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Questions people ask
Does it handle midnight?
Yes. If the end time is earlier than the start, it counts it as the next day.
Can I take off a break?
Yes, in the "Between two times" mode.
Is anything stored?
No. It runs in your browser.
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