How the hours are calculated
For each day, the calculator turns your clock times into minutes since midnight, subtracts start from end, then removes the unpaid break:
daily minutes = ( clock-out − clock-in ) − unpaid break
daily hours = daily minutes ÷ 60
If the clock-out time is earlier than the clock-in (an overnight shift), 24 hours are added so the math still works. The weekly total is the sum of all seven days. Hours up to 40 are regular; anything beyond is overtime:
gross pay = ( regular hrs × rate ) + ( OT hrs × rate × OT multiplier )
Worked example
Say you work five days, 9:00 to 17:30 with a 30-minute unpaid lunch, at $20/hour:
Per day: 17:30 − 9:00 = 8.5 hours, minus 0.5 break = 8.0 paid hours.
Weekly: 8.0 × 5 = 40.0 hours — all regular, no overtime.
Gross pay: 40 × $20 = $800.
Work a sixth 8-hour day and you'd hit 48 hours: 40 regular + 8 overtime, paid 8 × $20 × 1.5 = $240 extra, for $1,040 total.
Minutes-to-decimal conversion
Payroll runs on decimal hours, not hours-and-minutes, so 8 hours 30 minutes is entered as 8.5. To convert, divide the minutes by 60:
| Minutes | Decimal | Minutes | Decimal |
|---|---|---|---|
| 10 | 0.17 | 40 | 0.67 |
| 15 | 0.25 | 45 | 0.75 |
| 20 | 0.33 | 50 | 0.83 |
| 30 | 0.50 | 60 | 1.00 |