Hours Calculator

An hours calculator finds the total elapsed time between a start and an end point. You enter two clock times and the tool returns the difference in hours and minutes, plus a decimal-hours figure that payroll and billing systems use to multiply by an hourly rate.

The underlying math converts both times to minutes since midnight, subtracts the start from the end, and divides by 60. When the end time is earlier than the start — for example a 22:00 to 06:00 overnight shift — the calculator adds 24 hours so the duration is still measured correctly without you having to track day rollover.

Hourly employees use it to verify paychecks, freelancers use it to bill clients, and shift supervisors use it to confirm coverage. Because the output is decimal hours, it drops straight into timesheets and invoicing software.