Time calculator
Add up times like 2h 30m + 1:45 − 20m, find how long it is from 9:15 to 17:40, add 8 hours 30 minutes to a start time, or turn 1.75 hours into 1:45.
- Durations and clock times
- Free, no sign-up
Runs in your browser. Nothing you type or open is uploaded. Free to use, no account. More everyday tools
How to use it
- Pick what to calculate.
- Type the times in any common form: 1:45, 1h 45m, 105m or 1.75h.
- Read the result as hours and minutes, decimal hours, minutes and seconds.
Formats the calculator understands
Durations can be written as h:mm or h:mm:ss, with units such as 2h 30m 15s, or as decimal hours like 1.75h. Join several with + and −, so 7:30 + 8:15 + 6:45 adds up a week of shifts. Results show as hours and minutes, decimal hours for timesheets, total minutes and total seconds.
Time between two clock times handles shifts that cross midnight, so 22:00 to 06:30 is 8 hours 30 minutes, and subtracts an unpaid break. Clock time plus a duration gives the end time and says if it falls on the next day.
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Questions
How do I add hours and minutes?
Choose Add and subtract times and type the times joined with +, for example 2:30 + 1:45. The total shows as 4 hours 15 minutes and 4.25 hours.
How do I convert minutes to decimal hours for a timesheet?
Choose Convert and type the time, such as 7:45 or 465m. The result shows 7.75 hours.
Can it handle a night shift past midnight?
Yes. Time between two clock times treats an end time earlier than the start as the next day.
Can I subtract a break?
Yes. Enter the unpaid break in minutes and it is taken off the total.