QuickWebCalcs

Time Duration Calculator

Calculate exactly how many hours and minutes have elapsed between a start time and an end time.

Total Duration

8h 0m

or 480 total minutes

Decimal Format
8.00 hours
Perfect for calculating payroll
Time Passed
09:00 17:00

The Best Way to Calculate Timesheets

If you manage hourly employees or track your own billable freelance hours, converting clock-in and clock-out times into total hours worked is a daily chore. Our Time Duration Calculator automates this math flawlessly.

Automatic Decimal Conversion

The trickiest part of timesheet math is converting minutes into payroll decimals. For instance, working 8 hours and 15 minutes is not "8.15 hours" for payroll—it's actually 8.25 hours (because 15 minutes is a quarter of an hour). Our tool does this conversion automatically, saving you from payroll calculation errors.

Frequently Asked Questions

Yes! If you enter a start time in the evening (e.g., 10:00 PM) and an end time in the morning (e.g., 6:00 AM), the calculator automatically detects that the shift crossed midnight and correctly calculates the 8-hour duration.
Decimal format (like 8.5 hours instead of 8 hours 30 minutes) is the standard format required for calculating payroll. You simply multiply the decimal format by the hourly wage to get total pay.
Absolutely. Subtracting times manually in your head often leads to errors because time uses a base-60 system rather than base-10. For example, 5:30 minus 4:45 requires borrowing 60 minutes instead of 10.