Time card calculator
Start, end and unpaid break for each day – the total hours worked for the week, in hours and minutes and in decimal hours, with overtime and pay if you add a rate. Night shifts past midnight work too.
Pay is shown in US dollars; the sum is the same in pounds or euros.
How the calculation works
- Each day: end time minus start time, minus the unpaid break. If the end is earlier than the start, the shift crossed midnight and 24 hours are added.
- The week: the days added up, shown as hours:minutes and as decimal hours with two places.
- Overtime: everything above the weekly threshold. Regular pay is regular hours × rate; overtime pay is overtime hours × rate × multiplier.
Example
Monday to Friday 8:00 to 17:00 with a 30-minute break is 8:30 a day, 42:30 for the week. With a threshold of 40 hours that is 40:00 regular and 2:30 overtime. At $20 an hour: 40 × $20 + 2.5 × $20 × 1.5 = $875.00.
Every week, without the spreadsheet
If you are adding up time cards for a team every week, irot Time does it as people clock in and out on their phone or a tablet at the door – breaks, overtime and the payroll export included. Clock in by phone · Printable timesheet template.
Questions we get
How do I calculate hours worked?
Subtract the start time from the end time and take off unpaid breaks. 8:30 am to 5:00 pm is 8 hours 30 minutes; minus a 30-minute lunch that is 8:00, or 8.00 decimal hours. Do it for each day and add the days up – the calculator above does exactly that.
What about a night shift that ends after midnight?
Enter it as it happened, for example 10:00 pm to 6:00 am. When the end is earlier than the start, the calculator counts it as running past midnight: 8 hours, not minus 16.
How is overtime calculated in the US?
Under the Fair Labor Standards Act, non-exempt employees must be paid at least one and a half times their regular rate for hours over 40 in a workweek (29 U.S.C. § 207). Leave the threshold at 40 and the multiplier at 1.5. Some states add daily overtime rules; check yours.
And in the UK?
There is no legal right to extra pay for overtime: it depends on the contract. Your average pay for all hours must not fall below the National Minimum Wage, and you cannot usually be made to work more than 48 hours a week on average. Set the threshold and multiplier to what the contract says, or clear the threshold.
Why convert to decimal hours?
Payroll multiplies hours by a rate, so it needs 8.5, not 8:30. Typing 8.30 instead of 8.5 loses twelve minutes. The result shows both. Single conversions: decimal hours calculator.
Is what I type stored?
No. Everything is calculated in your browser and nothing is sent. Reload the page and it is empty again.
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Questions? Write to time@irot.com. We answer on working days, usually by the next one.