OTHER · TIME CARD
Time Card Calculator
Enter clock-in and clock-out times to calculate total hours worked, with optional unpaid break deduction. Returns results in both decimal hours and HH:MM format.
About This Calculator
Enter your clock-in and clock-out times to see exactly how many hours you worked. Add an optional unpaid break and the result is shown in both decimal hours (useful for payroll) and HH:MM format. Overnight shifts are handled automatically.
How It Works
Select your clock-in and clock-out times using the time pickers. Enter the length of any unpaid break in minutes (enter 0 for no break). The calculator subtracts the break from the total shift length and returns the net hours in both decimal and HH:MM formats.
The Formula
Net hours = (Clock-out − Clock-in) − Break. For a 9:00 to 17:30 shift with a 30-minute break: gross = 8h 30m = 510 min; net = 510 − 30 = 480 min = 8.00 decimal hours = 8:00 HH:MM. Overnight shifts (clock-out before clock-in) automatically add 24 hours (1440 min).
Frequently Asked Questions
- How are overnight shifts handled?
- If clock-out is earlier than clock-in, the calculator automatically treats the shift as crossing midnight and adds 24 hours. For example, a 22:00 → 06:00 shift is calculated as 8 hours worked.
- What is decimal hours and how do I use it?
- Decimal hours express time as a decimal fraction — 8.5 means 8 hours and 30 minutes. Payroll software and hourly-rate calculations often require decimal hours. To convert manually, divide minutes by 60 (e.g. 30 min ÷ 60 = 0.5).
- Can I calculate a shift with no break?
- Yes — enter 0 in the break field (or leave it as default 0). The calculator returns the full gross shift time as the result.
- What happens if the break is longer than the shift?
- The calculator will show an error — break time cannot equal or exceed the gross shift time.