Hours Worked Calculator
Enter start and end times for each day you worked (12- or 24-hour format) and any unpaid break in minutes. Leave days off blank — only filled-in days are counted.
Weekly time card
How the hours are counted
- For each day: end time − start time.
- If the end time is earlier than the start time, the shift is treated as running past midnight (22:00 to 06:00 = 8 h).
- Subtract the unpaid break.
- Add the days together and convert to decimal hours by dividing the minutes by 60.
Worked example
Monday 9:00 AM to 5:30 PM with a 30-minute break
- 17:30 − 09:00 = 8 h 30 min
- 8 h 30 min − 30 min = 8 h 00 min
- Five such days: 5 × 8 h = 40 h
40:00 hours, or 40.00 decimal hours.
Hours and minutes vs decimal hours
| Minutes | Decimal hours |
|---|---|
| 6 min | 0.10 |
| 15 min | 0.25 |
| 20 min | 0.33 |
| 30 min | 0.50 |
| 40 min | 0.67 |
| 45 min | 0.75 |
Payroll systems often want decimal hours. 7 h 45 min is 7.75 hours, not 7.45. Your employer may round punch times (for example to the nearest 6 or 15 minutes); this calculator uses the exact times you enter.