Find the hours and minutes between two times, with an optional break deducted, as hours and minutes, hh:mm, decimal hours or total minutes. Fast, free, and built for simple browser-based workflows.
Calculated in this browser tab. The times you enter are not sent anywhere.
Hours between the two times
Enter a start and end time, or try the example.
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Hours Calculator is a free online tool that works out the hours and minutes between two times, with an optional break taken off the total. Enter a start and end time and the duration appears as hours and minutes, hh:mm, decimal hours and total minutes, updating as you type.
It's the kind of thing you reach for mid-shift: working out how long you were actually on the clock after an unpaid lunch, checking how long an overnight shift from 22:00 to 06:00 really runs, totting up billable hours for a client, or seeing how long a flight, a meeting or a workout lasted. Freelancers checking an invoice and anyone totting up hours by hand both end up doing this math more often than they'd like.
Everything is worked out in your browser, so the times you enter - and anything about your shift or your day - never leave your tab or get logged anywhere. That matters whether you're checking a client's billable hours or just your own time off.
Type a start time and an end time, or click Now beside either field to grab the current time.
Enter the unpaid break in Break, as minutes (30) or hours and minutes (0:30) - it's taken off the total automatically.
Turn on Show seconds for precise spans, or Span is over several days to add date fields when the shift crosses midnight and then some.
The duration appears as the headline, with hh:mm, decimal hours and total minutes below it - each one has its own copy button.
Yes! All our tools are 100% free to use with no hidden costs, no registration required, and no credit card needed.
Absolutely. All tools run entirely in your browser (client-side). Your data never leaves your device and is not sent to our servers.
Yes, once the page is loaded, the tool will continue to work even if you lose internet connection since it runs in your browser.
Yes! All our tools are free for both personal and commercial use.
Type a start time and an end time and the result appears immediately below - no button to click unless you want to. It shows the span as hours and minutes, hh:mm, decimal hours and total minutes, all worked out at once.
Enter the unpaid break length as plain minutes (30) or as hours and minutes (0:30 or 1:15), and it's subtracted from the time between your start and end. Leave it blank if there wasn't one.
It's treated as an overnight span: the calculator assumes the end time falls the next day and says so in a note below the result. 22:00 to 06:00, for example, comes out as 8 hours.
The result is 0 hours, with a note suggesting you turn on dates if you actually mean a full 24-hour span rather than no time passing at all.
Yes. Turn on "Span is over several days" in More options and date fields appear next to each time, so you can work out the hours between, say, Saturday 22:00 and Monday 06:00.
It shows up only when you've added dates and your time zone's clocks moved during that span - for example, a spring daylight-saving change. The headline still shows the plain clock difference, and the note gives the real elapsed time, which can be an hour more or less.
Yes, turn on Show seconds in More options and both time fields pick up a seconds place. The result then shows hours, minutes and seconds together, down to the second.
Decimal hours (like 7.50 instead of 7 h 30 min) are the format most timesheets and invoicing tools expect, since they're easy to multiply by an hourly rate. The total is calculated from the exact seconds, not rounded minutes, so it stays accurate even after a break is deducted.
Only if you've turned on dates for a span that crosses a clock change in your time zone - otherwise no, since the result is simply the gap between two times you typed in. When it does apply, a note gives the real elapsed time alongside the plain clock figure.