Free calculator · data stays in your browser
Calculate worked hours, breaks and overtime.
Enter the day’s punches and instantly get attendance span, breaks, net work, regular hours, deficit and potential overtime.
Result
Enter punches and calculate.
No day calculated yet.
Transparent calculation
Every step remains clear.
Flexible punches
Add every clock-in and clock-out recorded during the day.
Sequence checks
Consecutive clock-ins, unmatched clock-outs and incomplete pairs are flagged.
Automatic breaks
Every interval between a clock-out and the next clock-in is deducted.
Regular time
Net hours up to the expected daily value.
Overtime
Time above expected hours and tolerance, shown as potential overtime.
Deficit
Difference from expected hours when net work is lower.
Worked examples
From punches to totals, without formulas.
Day with a break
08:00–12:30 and 13:30–17:30 produce 8 hours 30 minutes of net work and a 1-hour break.
Decimal hours
8 hours 30 minutes equals 8.50 decimal hours; 8 hours 15 minutes equals 8.25.
Overnight shift
A clock-out after midnight is automatically assigned to the following day.
Frequently asked questions
Calculation rules and limitations
How are worked hours calculated?
The calculator subtracts all breaks from the attendance span and returns net worked time.
How is overtime calculated?
Net work above configured regular hours is shown as potential overtime and must be checked against contracts and company rules.
Does it handle overnight shifts?
Yes. If clock-out is earlier than or equal to clock-in, it is treated as occurring the next day.
Is entered data stored?
No. Calculation happens entirely in the browser and data is not sent to the server.
Want to calculate the whole month automatically?
TotemClock AI collects punches and prepares timecards and timesheets.