Time Card Calculator (Hours & Overtime)
Calculate daily shift hours and weekly overtime from clock-in, clock-out, and unpaid breaks.
Enter Your Dimensions
US • ftHow We Calculated This
• Overtime is typically compensated at 1.5× the base hourly wage rate.
Formula & Volumetric Method
Worked Minutes = (Clock Out − Clock In) − Unpaid Break Minutes. Hours = Worked Minutes ÷ 60.
Calculations are performed strictly using standard civil engineering constants. Volumetric outputs are normalized to true compaction rates, ensuring purchased quantities match jobsite yields.
Jobsite Engineering Guidelines
- Supports overnight shifts that cross midnight automatically.
- Federal overtime applies to hours worked beyond 40 in a standard workweek.
Frequently Asked Questions
How accurate is the Time Card Calculator (Hours & Overtime) for ordering materials?
Our calculations match standard store packaging sizes in the US, Canada, UK, and Australia. We include a safety waste buffer (default 8% to 12%) so you do not run short due to uneven ground or spillage.
Why should I add extra for waste when ordering?
Uneven ground, cutting scrap, and leftover mix in the wheelbarrow or mixer drum consume an extra 5% to 15% of material. Ordering only the exact measurement usually leaves you short, which can lead to expensive extra delivery fees.
Does this calculator support both Imperial and Metric units?
Yes. You can switch between US Customary (feet, inches, cubic yards, pounds), Canadian units, UK metric, and Australian standards using the region selector in the header or the unit dropdown on each input.