Free Time Card Calculator

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free time card calculator
Daily Time Card (Start/End)Decimal Hours Conversion
Results:
Total Work Time: 0.00 hours
Gross Estimated Pay: $0.00
function calculateTimeCard(){var startVal=document.getElementById('input1').value;var endVal=document.getElementById('input2').value;var breakMin=parseFloat(document.getElementById('input3').value);var payRate=parseFloat(document.getElementById('input4′).value);var isRounding=document.getElementById('rounding').checked;if(!startVal.includes(':')||!endVal.includes(':')){alert('Please enter time in HH:MM format (e.g., 08:30)');return;}if(isNaN(breakMin)||isNaN(payRate)){alert('Please enter valid numbers for break and rate');return;}var sParts=startVal.split(':');var eParts=endVal.split(':');var sMin=parseInt(sParts[0])*60+parseInt(sParts[1]);var eMin=parseInt(eParts[0])*60+parseInt(eParts[1]);if(eMin<sMin){eMin+=1440;}var rawMinutes=eMin-sMin-breakMin;if(rawMinutes<0)rawMinutes=0;if(isRounding){rawMinutes=Math.round(rawMinutes/15)*15;}var hours=rawMinutes/60;var totalPay=hours*payRate;document.getElementById('totalHours').innerHTML=hours.toFixed(2);document.getElementById('grossPay').innerHTML='$'+totalPay.toLocaleString(undefined,{minimumFractionDigits:2,maximumFractionDigits:2});}

Using the Free Time Card Calculator

The free time card calculator is a professional tool designed for employees, freelancers, and small business owners to accurately track work hours and calculate gross pay. Whether you need to log a standard shift or account for irregular hours, this tool simplifies the process by converting clock times into decimal hours automatically.

By using this calculator, you eliminate the common mathematical errors associated with manual timekeeping, such as miscalculating lunch breaks or failing to convert minutes into the correct decimal format required for payroll software.

Start and End Time
Enter your shift times in a 24-hour format (e.g., 08:00 for 8 AM and 17:00 for 5 PM). The calculator supports overnight shifts by automatically detecting if the end time occurs the following day.
Break Duration
Total unpaid break time in minutes. This is subtracted from the total elapsed time between your start and end points.
Rounding Interval
Many companies use the "7-minute rule" or 15-minute rounding. Checking this box will snap your total time to the nearest quarter-hour (0.25, 0.50, 0.75, or .00).

How It Works: The Math Behind the Clock

To calculate your pay correctly, you must convert the sexagesimal (base-60) time system into a decimal (base-10) system. Our free time card calculator uses the following logic:

Total Hours = [(End Time – Start Time) – Unpaid Break Minutes] / 60

Once the decimal hours are found, the gross pay is calculated as:

Gross Pay = Total Decimal Hours × Hourly Rate

Calculation Example

Scenario: An employee starts work at 8:30 AM (08:30) and leaves at 5:15 PM (17:15). They took a 45-minute unpaid lunch break, and their pay rate is $22.00 per hour.

Step-by-step solution:

  1. Elapsed Time: 17:15 – 08:30 = 8 hours and 45 minutes.
  2. Total Minutes: (8 * 60) + 45 = 525 minutes.
  3. Subtract Break: 525 – 45 = 480 minutes.
  4. Convert to Decimal: 480 / 60 = 8.00 hours.
  5. Calculate Pay: 8.00 hours * $22.00 = $176.00.

Common Questions

How do I convert minutes to decimal hours?

To convert minutes to a decimal, divide the number of minutes by 60. For example, 15 minutes is 0.25 hours (15/60), 30 minutes is 0.5 hours (30/60), and 45 minutes is 0.75 hours (45/60).

Does this calculator handle overtime?

This specific tool calculates daily gross pay. If your daily hours exceed 8 hours or your weekly hours exceed 40 (depending on local laws), you would manually apply an overtime multiplier (usually 1.5x) to the hours exceeding those limits.

What if I work through midnight?

The calculator logic automatically detects "wrap-around" time. If your start time is 10:00 PM (22:00) and your end time is 6:00 AM (06:00), the free time card calculator understands that 8 hours have elapsed by adding 24 hours to the end time during the calculation.

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