🕘 Hours Calculator
Fill in a weekly time card with start, end and break times to total the hours worked and, optionally, the pay due.
Quick answer: For each day, hours worked = end − start − break. Working 9:00 AM to 5:30 PM with a 30-minute break is 8 hours a day, so five such days total 40 hours – $800.00 at $20 an hour.
Updated · Free · No sign-up · Works on any device
Hours Calculator inputs
Result
Total time worked
40 h
40 decimal hours over 5 days
- Hours (h:mm)
- 40:00
- Decimal hours
- 40
- Average per day
- 8 h
- Pay at $20.00/h
- $800.00
Time card
| Day | Start | End | Break | Hours | Pay |
|---|---|---|---|---|---|
| Monday | 9:00 AM | 5:30 PM | 30 min | 8:00 (8) | $160.00 |
| Tuesday | 9:00 AM | 5:30 PM | 30 min | 8:00 (8) | $160.00 |
| Wednesday | 9:00 AM | 5:30 PM | 30 min | 8:00 (8) | $160.00 |
| Thursday | 9:00 AM | 5:30 PM | 30 min | 8:00 (8) | $160.00 |
| Friday | 9:00 AM | 5:30 PM | 30 min | 8:00 (8) | $160.00 |
How to calculate hours worked
For each shift, convert the start and end times to minutes, subtract, and remove any unpaid break. Add up all the days, then divide by 60 to get decimal hours for payroll.
Daily minutes = (end − start) − break · Pay = (total minutes ÷ 60) × hourly rate
Worked example
A standard week of 9:00 AM to 5:30 PM, Monday to Friday, with a 30-minute lunch: each day is 8 h 30 min on site minus 30 minutes = 8 hours. Five days make 40 hours, and at $20.00 per hour the gross pay is $800.00.
Converting minutes for timesheets
| Time worked | Decimal hours |
|---|---|
| 7 h 15 min | 7.25 |
| 7 h 30 min | 7.50 |
| 7 h 45 min | 7.75 |
| 8 h 20 min | 8.33 |
| 8 h 40 min | 8.67 |
Checking your pay slip
Compare the total decimal hours here with the hours printed on your pay slip. Small differences usually come from rounding rules or unpaid breaks recorded differently. If the gap is larger, check for missing days, overnight shifts entered on the wrong day, or overtime paid at a higher rate. Keeping a simple weekly record like this makes it easy to raise a query with payroll.
Tips for accurate time cards
- Record unpaid breaks only. Short paid rest breaks usually count as working time.
- Overnight shifts are handled automatically – no need to split them at midnight.
- Rounding: if your employer rounds to the nearest quarter hour, round each start and end time before entering them.
- Overtime: hours over 40 per week are flagged so you can check time-and-a-half pay.
Frequently asked questions
How do I enter an overnight shift?
Just enter the real clock times, for example 22:00 to 06:00. When the end time is earlier than the start, the calculator assumes the shift finished the next morning and counts 8 hours.
Do I have to fill in all seven days?
No. Leave both start and end empty for days off and they are ignored. Only days with both times are totalled.
Why does payroll use decimal hours?
Pay is hours × rate, and multiplying needs a decimal. 7 h 45 min is 7.75 hours, not 7.45 – entering 7.45 would underpay by 18 minutes.
Does it calculate overtime pay?
It shows how many hours exceed 40 in the week, which is the US federal overtime threshold. Multiply those hours by 1.5 × your rate to estimate time-and-a-half; local rules can differ.