Work Time Clock Calculator
Summary
Total Work Duration:
Decimal Format: hours
How to Use the Work Time Clock Calculator
This calculator is designed to help employees and employers accurately track daily work hours for payroll and productivity management. By entering your start and end times, along with any unpaid breaks, you can determine exactly how long you worked in both hours/minutes and decimal format.
The Work Hour Calculation Formula
The math behind calculating work hours involves converting clock times into a 24-hour format and then subtracting the break time. The basic formula is:
(Clock-Out Time – Clock-In Time) – Break Duration = Total Net Hours
Practical Example
Let's say you clock in at 8:30 AM and clock out at 5:15 PM with a 45-minute lunch break:
- Convert to 24-hour time: 8:30 and 17:15.
- Calculate raw duration: 17:15 – 8:30 = 8 hours and 45 minutes.
- Subtract break: 8 hours 45 mins – 45 mins = 8 hours total.
- Decimal conversion: 8.00 hours.
Why Track Decimal Hours?
Most payroll systems use decimal hours (e.g., 7.5 hours instead of 7 hours and 30 minutes) to calculate paychecks. To convert minutes to decimals manually, divide the minutes by 60. For example, 15 minutes is 0.25 (15/60), and 45 minutes is 0.75 (45/60).
Handling Overnight Shifts
Our calculator automatically handles overnight shifts. If your "Clock-Out Time" is earlier than your "Clock-In Time," the system assumes the shift ended on the following day, ensuring accuracy for night shift workers.