Time Card Calculator

Adding Up a Week of Hours

Each day’s worked time is just the end time minus the start time, minus any unpaid break. The catch is the clock: it resets at 12, so you cannot always subtract directly - a shift from 10 PM to 6 AM crosses midnight. This calculator handles that for you and adds every day into a weekly total.

Fill in the days you worked and leave the rest blank. Add an hourly rate if you want to see the pay for those hours - the rate is a plain number, so it works in any currency.

How to Use It

1. For each day, enter the start and end time and any break in minutes.
2. Leave days off blank - they count as zero.
3. Read the per-day hours and the weekly total. Add an hourly rate for total pay.

How Each Day Is Counted

$$\text{hours} = (\text{end} - \text{start}) - \text{break}$$

If the end time is earlier than the start, the shift is treated as running past midnight (so 10:00 PM to 6:00 AM is 8 hours before breaks).

Worked Example

A shift from 09:00 to 17:00 with a 30-minute lunch is 8 hours minus half an hour, or 7.5 hours. Five such days make a 37.5-hour week. At a rate of 20 per hour, that is 750 in pay.

Notes

• Times use a 24-hour or AM/PM picker depending on your device.
• Breaks are unpaid minutes subtracted from the shift.
• Totals are shown both as hours-and-minutes and as decimal hours (handy for payroll).