How the work hours calculator works
Enter when you started and finished each day and how long your breaks were. The calculator subtracts the breaks and shows the time actually worked – as hours:minutes and as decimal hours – with the total for the week below. Use 24-hour times or your browser's AM/PM picker.
Monday to Thursday 8:00–16:30 with a 30-minute break, Friday 8:00–15:00 with a 30-minute break:
4 × 8:00 + 6:30 = 38:30 hours = 38.5 decimal hours for the week.
Tips for accurate timesheets
- Write down start, end and breaks every day – reconstructing a week on Friday is where mistakes creep in.
- Unpaid breaks are not working time. Paid rest breaks (common in some contracts) should be left out of the break column.
- Round the way your employer does. Many round to the nearest 5, 6 or 15 minutes; this calculator shows the exact figure.
FAQ
How do I calculate hours worked with a lunch break?
Subtract the start time from the end time, then subtract the break. 8:30 am to 5:00 pm is 8 hours 30 minutes; minus a 45-minute lunch leaves 7 hours 45 minutes, or 7.75 decimal hours.
How do I handle a night shift?
Just enter the times as they are – for example 22:00 to 06:00. When the end time is earlier than the start time, the calculator treats the shift as running past midnight.
Can I enter more than one break?
Yes. Add them with a plus sign, e.g.
15+30 for a 15-minute coffee break and a 30-minute lunch.Why do I need decimal hours?
Payroll software and hourly invoices multiply hours by a rate, which only works with decimals. 7:45 is 7.75 hours, not 7.45. See the decimal hours converter for details.
Is my timesheet saved?
Only in your own browser (localStorage), so your week is still there next time. Nothing is sent to us. Use “Reset” to clear it.