Filling in a paper time sheet or reconciling a payslip? The time card calculator adds up a full week of clock-in and clock-out times, subtracts unpaid breaks, and can estimate gross pay with an overtime rule — all without sending your hours to any server.
How daily hours are worked out
For each day the tool converts the clock-in and clock-out times to minutes, subtracts the two, and then removes any unpaid break minutes you entered. If the clock-out time falls before the clock-in time, it treats the shift as overnight and adds a full day so the total stays positive. Daily totals are summed into a weekly figure shown in hours-and-minutes and as a decimal.
Overtime and pay
When you supply an hourly rate, the calculator splits the week into regular and overtime hours at the threshold you set (40 hours by default). Regular hours are paid at your rate; overtime hours are paid at the rate times your multiplier (1.5 by default). The result is a gross-pay estimate — before tax, national insurance or other deductions.
Worked example
A week of 8-hour days Monday to Friday with a 30-minute unpaid lunch each day gives 7.5 paid hours per day, or 37.5 hours for the week — under a 40-hour overtime threshold, so no overtime applies. Add a 6-hour Saturday and the week reaches 43.5 hours: 40 at the base rate and 3.5 at the overtime multiplier.