Shift Calculator

.shift-calc-container { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; max-width: 800px; margin: 20px auto; padding: 25px; border: 1px solid #e1e1e1; border-radius: 12px; background-color: #ffffff; box-shadow: 0 4px 6px rgba(0,0,0,0.05); } .shift-calc-container h2 { color: #2c3e50; text-align: center; margin-bottom: 25px; } .shift-input-group { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; } .shift-field { display: flex; flex-direction: column; } .shift-field label { font-weight: 600; margin-bottom: 8px; color: #34495e; } .shift-field input { padding: 12px; border: 1px solid #ccd1d9; border-radius: 6px; font-size: 16px; } .shift-calc-btn { width: 100%; background-color: #3498db; color: white; padding: 15px; border: none; border-radius: 6px; font-size: 18px; font-weight: bold; cursor: pointer; transition: background-color 0.3s; } .shift-calc-btn:hover { background-color: #2980b9; } #shift-result { margin-top: 25px; padding: 20px; background-color: #f8f9fa; border-radius: 8px; border-left: 5px solid #3498db; display: none; } .result-item { display: flex; justify-content: space-between; margin-bottom: 10px; font-size: 17px; } .result-label { font-weight: bold; } .result-value { color: #2c3e50; font-weight: 700; } .shift-article { margin-top: 40px; line-height: 1.6; color: #444; } .shift-article h3 { color: #2c3e50; margin-top: 25px; } @media (max-width: 600px) { .shift-input-group { grid-template-columns: 1fr; } }

Work Shift & Pay Calculator

Total Duration:
Net Work Hours:
Estimated Gross Pay:

How to Calculate Your Work Shift

Calculating your work shift accurately is essential for ensuring you are paid correctly for every hour worked. Many employees struggle with "overnight" shifts or subtracting unpaid breaks. This shift calculator handles the math for you, including shifts that cross over midnight.

To calculate manually, you should convert your start and end times to a 24-hour format. Subtract the start time from the end time. If the result is negative (meaning you worked past midnight), add 24 hours to the result. Finally, subtract your unpaid break time in decimal format (e.g., 30 minutes = 0.5 hours) to find your total billable hours.

The Importance of Tracking Shift Hours

Whether you are a freelancer, a retail worker, or a healthcare professional, keeping a log of your shifts provides a layer of protection against payroll errors. This calculator provides a quick way to verify your timesheet before submission.

Example Calculations

  • Standard Shift: Start at 08:00, End at 16:30, with a 30-minute break. Total hours: 8.0.
  • Night Shift: Start at 22:00, End at 06:00, with a 60-minute break. Total hours: 7.0.
  • Part-time Shift: Start at 13:00, End at 17:15, no break. Total hours: 4.25.

Common FAQs

What if I have multiple breaks? Sum all your unpaid break minutes together and enter the total in the "Unpaid Break" field.

Does this include taxes? This calculator provides the "Gross Pay," which is the amount earned before any tax withholdings or social security deductions.

function calculateShift() { var startTime = document.getElementById('startTime').value; var endTime = document.getElementById('endTime').value; var breakMinutes = parseFloat(document.getElementById('breakMinutes').value) || 0; var hourlyRate = parseFloat(document.getElementById('hourlyRate').value) || 0; if (!startTime || !endTime) { alert("Please enter both start and end times."); return; } var startParts = startTime.split(':'); var endParts = endTime.split(':'); var startMinutes = parseInt(startParts[0]) * 60 + parseInt(startParts[1]); var endMinutes = parseInt(endParts[0]) * 60 + parseInt(endParts[1]); var totalDiffMinutes; if (endMinutes >= startMinutes) { totalDiffMinutes = endMinutes – startMinutes; } else { // Over midnight logic totalDiffMinutes = (1440 – startMinutes) + endMinutes; } var netWorkMinutes = totalDiffMinutes – breakMinutes; if (netWorkMinutes < 0) netWorkMinutes = 0; var decimalHours = netWorkMinutes / 60; var totalGrossPay = decimalHours * hourlyRate; // Formatting for display var displayHours = Math.floor(totalDiffMinutes / 60); var displayMins = totalDiffMinutes % 60; document.getElementById('totalDuration').innerText = displayHours + "h " + displayMins + "m"; document.getElementById('netHours').innerText = decimalHours.toFixed(2) + " hours"; document.getElementById('grossPay').innerText = "$" + totalGrossPay.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('shift-result').style.display = 'block'; }

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