Time Card Calculator
Calculate weekly work hours, overtime, and gross pay from daily timesheet entries
| Day | Period 1 | Period 2 | Period 3 | Total | |||
|---|---|---|---|---|---|---|---|
| In | Out | In | Out | In | Out | ||
| Day | Hours Worked |
|---|
| Summary | Hours |
|---|
Decimal Hours Conversion Reference
| Minutes | Decimal Hours | Minutes | Decimal Hours |
|---|---|---|---|
| 5 min | 0.083 | 35 min | 0.583 |
| 10 min | 0.167 | 40 min | 0.667 |
| 15 min | 0.250 | 45 min | 0.750 |
| 20 min | 0.333 | 50 min | 0.833 |
| 25 min | 0.417 | 55 min | 0.917 |
| 30 min | 0.500 | 60 min | 1.000 |
How to Use the Time Card Calculator
The time card calculator turns daily clock-in and clock-out records into a complete weekly payroll summary. Enter times in HH:MM format for each day. Each day supports up to three separate work periods, useful for shifts with lunch breaks or split shifts.
Entering Times
- Use 24-hour format: 08:30 for 8:30 AM, 17:00 for 5:00 PM
- You can also enter 12-hour format: 8:30 AM or 5:00 PM
- Leave unused period fields blank
- For overnight shifts, the calculator automatically adds 24 hours when the out time is earlier than the in time
Overtime Rules
- No overtime: all hours are paid at the base rate
- Daily overtime (after 8 hrs): hours beyond 8 per day are overtime. Used in California and some other states.
- Weekly overtime (after 40 hrs): hours beyond 40 per week are overtime. Standard under the US Fair Labor Standards Act.
Understanding Weekly Pay Calculations
Weekly pay calculations on a time card depend on three values: total regular hours, total overtime hours, and the applicable pay rates.
How Gross Pay Is Calculated
Gross pay equals regular hours multiplied by the base pay rate, plus overtime hours multiplied by the overtime pay rate. The most common overtime rate is 1.5 times the base rate, often called time and a half. For example, an employee earning $20 per hour who works 45 hours receives: (40 × $20) + (5 × $30) = $800 + $150 = $950 gross pay.
Daily vs Weekly Overtime
Daily overtime (after 8 hours per day) can result in more overtime pay than the 40-hour weekly rule. An employee working 10-hour days Monday through Friday logs 10 daily overtime hours (2 per day) even though the weekly total is 50. Under the weekly rule, only 10 hours exceed the 40-hour threshold. Both rules produce the same overtime here, but the daily rule activates earlier when daily hours are high.
Time Card Rounding Rules
Time card rounding rules determine how employers round punch-in and punch-out times for payroll. The US Department of Labor allows rounding to the nearest 5 minutes, one-tenth of an hour (6 minutes), or quarter hour (15 minutes), provided the rounding is neutral over time and does not consistently favor the employer.
Common Rounding Intervals
- Nearest 5 minutes: 8:32 rounds to 8:30, 8:33 rounds to 8:35
- Nearest 6 minutes (tenth of hour): used in decimal-hour payroll systems
- Nearest 15 minutes: 8:07 rounds to 8:00, 8:08 rounds to 8:15
This calculator uses exact times without rounding. Apply your employer’s rounding policy before entering times if required.
Frequently Asked Questions
A time card calculator takes the clock-in and clock-out times for each day, converts them to decimal hours, totals daily work time, and sums the weekly total. If a pay rate is entered, it multiplies regular and overtime hours by their respective rates to produce gross pay.
Overtime can be calculated two ways: after 8 hours per day, any daily hours beyond 8 are overtime; or after 40 hours per week, any weekly hours beyond 40 are overtime. Most US states use the weekly 40-hour standard, but California uses the daily 8-hour rule.
Gross pay is the total earnings before any deductions such as taxes or insurance. On a timesheet, gross pay equals regular hours times the regular pay rate plus overtime hours times the overtime pay rate.
Enter times in HH:MM format using 24-hour time or standard AM/PM. For example, enter 08:30 for 8:30 AM and 17:15 for 5:15 PM. The calculator handles overnight shifts automatically: if the out-time is earlier than the in-time, 24 hours are added to the out-time.
Yes. This time card calculator supports overnight shifts. If your out time is earlier than your in time in the same period, the calculator automatically adds 24 hours to the out-time, correctly computing a shift that crosses midnight.