Work Hours Calculator
Enter your clock-in and clock-out times plus your break, and instantly see exactly how many hours you worked — as a decimal, as hours and minutes, and with any overtime beyond 8 hours broken out separately. Night shifts that cross midnight are handled automatically.
How to Use the Work Hours Calculator
- Enter the time you started work in the Clock in field.
- Enter the time you finished in the Clock out field.
- Type your unpaid break in minutes (lunch, for example). Leave it at 0 if you had none.
- Press Calculate to see your total as a decimal (for timesheets), as hours and minutes, and any overtime beyond a standard 8-hour day.
Practical example
You clock in at 08:15, clock out at 17:45, and take a 45-minute lunch. The calculator shows 8.75 hours (8h 45m) with 0h 45m of overtime. If you fill in timesheets that want decimals, you can copy 8.75 straight across; if your manager wants hours and minutes, use 8h 45m. A night shift from 22:00 to 06:00 is understood as crossing midnight — no need to split it into two entries.
Freelancers billing by the hour use the decimal output directly on invoices — 6.5 hours at your rate, no mental division. If you work irregular shifts across a week, run each day through the calculator and add the decimals; the consistent format makes weekly totals trivial.
Key features and benefits
- Decimal and hh:mm output: get both formats at once, whichever your timesheet needs.
- Automatic overtime: anything beyond 8 hours is broken out separately, so extra pay is easy to spot.
- Overnight shifts: clocking out earlier than you clocked in is treated as the next day.
- Break deduction: unpaid breaks are subtracted before the total, matching how most payroll works.
- Input validation: impossible entries — like a break longer than the shift — show a clear message instead of a nonsense answer.
- Instant results: no page reloads, no accounts, no spreadsheets to open.
Limitations
Overtime is fixed at anything beyond 8 hours per day; the tool does not handle weekly overtime rules, double-time, weekend rates, or country-specific labour thresholds. It assumes a single continuous shift — split shifts need to be calculated in two passes. Results are for guidance only and are not payroll or legal advice; always confirm with your employer’s official timekeeping system.