Hours Calculator

How to use the hours calculator

Use the hours calculator to total hours worked across a week without manually converting minutes. Enter each clock-in time, clock-out time and unpaid break. Daily hours and the weekly total update automatically.

How to calculate hours worked

WorkTimeCheck calculates each shift by converting the clock-in and clock-out times into elapsed minutes, then subtracting the unpaid break you enter. The remaining paid minutes are converted back to hours and minutes and added to the weekly total.

For example, 8:00 AM to 5:00 PM spans 9 hours. Subtract a 30-minute unpaid break and the result is 8 hours 30 minutes worked. Across five identical days, that becomes 42 hours 30 minutes.

Hours and minutes versus decimal hours

Hours-and-minutes notation and decimal hours describe the same duration in different formats. Thirty minutes is 0.50 hours, 15 minutes is 0.25 hours and 45 minutes is 0.75 hours. A shift totaling 8 hours 30 minutes therefore equals 8.50 decimal hours.

Do not treat minutes as hundredths of an hour: 8 hours 45 minutes is 8.75 hours, not 8.45. WorkTimeCheck performs the conversion automatically.

Breaks, overnight shifts and weekly totals

Enter only unpaid break time that should be excluded from worked hours. If a shift ends after midnight, an end time earlier than the start time is treated as occurring on the following day. Daily paid durations are then added to produce the weekly total.

The calculator uses wall-clock arithmetic. It does not determine whether a break is legally required, whether particular time must be paid, or how daylight-saving transitions should be treated.