9:00 AM to 5:30 PM
8 hr 30 min gross − 30 min unpaid lunch
Calculate Hours Worked Between Two Times
Enter when you clocked in and out, subtract an unpaid lunch or break, and get your paid work time in hours, minutes and decimal hours.
FreeNo sign-upRuns on your device
One completed shift
Hours worked
Paid work timeSame day
8 hr
8.00 decimal hours
- Gross span
- 8 hr 30 min
- Unpaid break
- − 30 min
The formula
How this calculator works
Paid work time = clock-out − clock-in − unpaid breaks
The calculator first finds the full span between your start and end times. If the end time is earlier than the start time, it treats the shift as crossing midnight. Only unpaid breaks are subtracted.
Real examples
Common workday calculations
8 hr worked
7:45 AM to 4:15 PM
8 hr 30 min gross − 45 min unpaid break
10:00 PM to 6:30 AM
8 hr 30 min overnight − 30 min unpaid break
Good to know
Edge cases and common mistakes
- An end time earlier than the start time is treated as the next day.
- Do not subtract paid breaks; they are already part of paid work time.
- Decimal hours are base 10: 7 hr 30 min equals 7.50 hours, not 7.30.
- For split shifts or several clock-ins, calculate each segment separately and add the results.
Answers
Frequently asked questions
How many hours is 9 to 5 with a 30-minute lunch?
The full span is 8 hours. Subtracting a 30-minute unpaid lunch leaves 7 hours 30 minutes of paid work.
Does this calculator handle an overnight shift?
Yes. If clock-out is earlier than clock-in, the calculator carries the end time into the next day.
Should I subtract my paid break?
Usually no for arithmetic purposes: a paid break remains part of paid work time. Check your workplace policy if you are unsure how a break is classified.