By Intious · Updated September 7, 2026
When clock-out is earlier than clock-in, add 24 hours to the ending time before subtracting the start and unpaid breaks.
Crossing midnight
A 22:00 start and 06:30 finish spans 8.5 hours. Subtract a 30-minute unpaid break and the worked total is 8 hours. Midnight changes the calendar date, not the subtraction rule.
Keep workweeks separate
A shift that crosses the employer’s workweek boundary may need to be split between two payroll weeks. The timecard calculator treats each row as one shift and does not identify a workweek boundary automatically. Split it yourself when the boundary matters.
Daylight-saving exception
On a night when clocks change, wall-clock subtraction can differ from elapsed time by an hour. Our time-only calculator does not know the location, time zone or date. Use recorded timestamps and the employer’s payroll procedure for those shifts.
Try it with your numbers
Add clock-in and clock-out times, subtract breaks, and see regular and overtime hours.
Work Hours CalculatorOfficial guidance
U.S. Department of Labor: hours worked · U.S. Department of Labor: regular rate of pay
Next steps
- How to Calculate Work Hours Correctly
- Shift Differential Pay: Formula and Examples
- Decimal Hours: Convert Minutes Without Payroll Errors
- Subtracting Unpaid Breaks from a Timecard
- How to Count Working Days Between Two Dates
- Turn Working Days into a Monthly Capacity Budget
- Add Timesheet Durations Without Rounding Errors
- Check a Decimal-Time CSV Before a Payroll Import