How to Calculate Work Hours & Timesheet Pay
Tracking working hours and deducting lunch breaks accurately is vital for timesheet reporting, freelancer invoicing, and overtime compliance. Standard clocks record time in hours and minutes (sexagesimal base-60), but payroll systems require decimal format for accurate mathematical multiplication.
Core Formulas:
- Gross Shift Minutes: $\text{End Minutes} - \text{Start Minutes}$ (add 1,440 mins for overnight shifts)
- Net Working Time: $\text{Gross Minutes} - \text{Break Minutes}$
- Decimal Hours: $\frac{\text{Net Working Minutes}}{60}$
- Gross Earnings: $\text{Decimal Hours} \times \text{Hourly Wage Rate}$
Example: An 8:30 AM to 5:00 PM shift with a 45-minute lunch break totals 8.5 gross hours minus 0.75 break hours = 7.75 decimal hours (7 hours and 45 minutes).
How do you convert minutes to decimal hours for payroll?
Divide the minutes by 60: 15 mins = 0.25 hrs, 30 mins = 0.50 hrs, 45 mins = 0.75 hrs, and 6 mins = 0.10 hrs.
How are overnight shifts crossing midnight calculated?
The calculator detects when the end time is numerically less than the start time and automatically adds 24 hours (1,440 minutes) to calculate continuous overnight duration without errors.
Can I calculate time addition and subtraction?
Yes. Use the "Add / Sub Time" mode tab above to add or subtract hours and minutes from any baseline time of day.
Does this calculator support unpaid meal break deductions?
Yes. Enter your total unpaid break duration in minutes (e.g., 30 or 60), and the tool automatically subtracts it from total elapsed shift time.
