Time Card Calculator

What this calculator does

The Time Card Calculator turns a week of daily start and end times into total hours, regular hours, overtime hours, and estimated pay. Each day can include an unpaid break in minutes or in H:MM form. The pay settings accept an hourly rate, a weekly overtime threshold, and an overtime multiplier.

The result separates regular pay from overtime pay so you can see how the multiplier affects the total. Daily rows show the time range, the break, and the hours credited for that day.

How to use this calculator

1. Enter a label and the start and end times for each day worked. Leave a day blank when it was not worked.
2. Enter the unpaid break for each day. The default is 30 minutes; type 0 when there is no break.
3. Enter the hourly pay rate, the number of hours before overtime begins, and the overtime multiplier.
4. Click Calculate.

The default example has one day, Monday, from 8:30 AM to 5:00 PM with a 30-minute break. That is 8 worked hours. At $35 per hour with a 40-hour weekly threshold and a 1.5× overtime multiplier, regular pay is $280.00, overtime pay is $0.00, and total pay is $280.00.

Time card formulas

Daily minutes = end time - start time
If end time < start time: add 24 hours
Worked minutes = daily minutes - break minutes
Total hours = sum of worked minutes / 60
Regular hours = min(total hours, weekly threshold)
Overtime hours = max(0, total hours - weekly threshold)
Regular pay = regular hours × hourly rate
Overtime pay = overtime hours × hourly rate × multiplier
Total pay = regular pay + overtime pay

Times can be entered as 8:30 AM, 17:00, or 8:30AM. If the end time is earlier than the start time, the calculator assumes an overnight shift. For example, 10:00 PM to 6:00 AM counts as eight hours before any break is deducted.

What the results mean

Total hours is the sum of all daily worked minutes after breaks. Regular hours are the portion up to the weekly threshold. Overtime hours are everything above it. Regular pay and overtime pay are rounded to the nearest cent, and total pay is their sum.

The daily table only shows days with credited time, so blank days do not clutter the result. Days worked counts the entries that produced more than zero hours.

Assumptions and limitations

• Overtime is calculated weekly, not daily. A state or contract with daily overtime needs a different rule.
• Breaks are unpaid and are deducted before overtime is calculated.
• The hourly rate is constant, and shift differentials, tips, bonuses, and taxes are not included.
• Weekly overtime is applied to total hours across all entered days, regardless of which day produced the extra time.
• The result is an estimate for planning, not a payroll record.

Frequently asked questions

Is overtime calculated per day or per week?

This calculator uses a weekly threshold. All worked hours are totaled first, and only the hours above the threshold receive the overtime multiplier. If your rules use daily overtime, calculate each day separately and compare.

Can I enter a break as 0:30 instead of 30?

Yes. The break field accepts either minutes, such as 30, or an H:MM value, such as 0:30. Both mean thirty minutes. The total break cannot exceed the time worked on that day.

How are overnight shifts handled?

If the end time is earlier than the start time, the calculator adds 24 hours before subtracting the break. A shift from 10:00 PM to 6:00 AM is eight hours, and a 30-minute break would reduce it to seven and a half hours.

Source

Reference: Calculator.net — Time Card Calculator.