⏱️ Time Card Calculator
Calculate daily and total work hours from clock-in / clock-out times with a lunch break deduction. Cross-midnight shifts supported — all in your browser.
| Day | Clock in | Clock out | Break (min) | Hours |
|---|
Fill in clock-in and clock-out times (24-hour format HH:MM), then click Calculate.
About the Time Card Calculator
This calculator computes daily work hours from clock-in and clock-out times, subtracting a lunch / rest break, and sums the total across multiple days. Cross-midnight shifts are handled automatically. Everything runs in your browser; no data leaves your device.
How hours are computed
For each row, the calculator parses the HH:MM clock-in and clock-out times. If clock-out is earlier than clock-in, the shift is assumed to cross midnight and 24 hours are added. The break (in minutes) is then subtracted:
net hours = (clock_out − clock_in) − break_min / 60
How to use
- For each day, enter Clock in and Clock out in 24-hour
HH:MMformat (e.g.09:00and17:30). - Enter the Break duration in minutes (default 0).
- Use + Add day to add more rows.
- Click Calculate. Daily hours appear in the table; total hours appear below.
Frequently asked questions
How are cross-midnight shifts handled? If clock-out is earlier than clock-in, 24 hours are added to clock-out. For example, 22:00 → 06:00 gives 8 hours.
Can I use 12-hour AM/PM? Use 24-hour format only. 1:30 PM should be entered as 13:30.
Is the break required? No. Leave the break at 0 if you didn't take one.
Does the calculator handle overtime? No — it reports total regular hours. For overtime rules (which vary by region), consult local labor regulations.