Time Duration Calculator - Calculate Exact Time Between Dates

Time Duration Calculator

Calculate the exact duration between two dates and times with Years, Months, Days, Hours, Minutes & Seconds precision.

Calculate Duration

0Years
0Months
0Days
0Hours
0Minutes
0Seconds

History

About Time Duration Calculator

The Time Duration Calculator is a free, advanced online tool designed to help you calculate the exact time difference between two dates and times. Whether you need to find out the number of days between dates, calculate your exact age in seconds, or determine the duration of a project, this tool provides precise results down to the second.

Key Features:

  • Precise Calculation: Get results in Years, Months, Days, Hours, Minutes, and Seconds.
  • Leap Year Support: Our algorithm automatically accounts for leap years and varying month lengths (28, 30, 31 days).
  • Export Options: Save your calculations easily by exporting to PDF or CSV (Excel).
  • Auto-Save History: Never lose a calculation; your recent history is saved automatically in your browser.

How to Use the Time Duration Calculator?

1. Select Start Date: Choose the starting date and time (including seconds).
2. Select End Date: Choose the ending date and time.
3. Calculate: Click the "Calculate Duration" button to see the breakdown.
4. Save/Print: Use the buttons below the result to print or save your data.

Frequently Asked Questions (FAQ)

Q: Is this Time Duration Calculator accurate?
A: Yes, it uses standard calendar logic to ensure 100% accuracy, handling leap years and specific month durations correctly.

Q: Can I use this on mobile?
A: Absolutely! This tool is fully responsive and works perfectly on mobile phones, tablets, and desktop computers.

© Time Duration Calculator. All rights reserved.

'); w.document.close(); w.focus(); setTimeout(() => { w.print(); w.close(); }, 500); }function exportCSV() { const hist = JSON.parse(localStorage.getItem('timeCalcHistoryV2')) || []; if(!hist.length) { alert("No history to export."); return; } let csv = "Start Date,End Date,Duration Result,Calculated At\n"; hist.forEach(h => { // Clean strings for CSV to avoid breaking with commas const cleanRes = h.r.replace(/,/g, ";"); csv += `"${h.s}","${h.e}","${cleanRes}","${new Date(h.t).toLocaleString()}"\n`; }); const link = document.createElement("a"); link.href = "data:text/csv;charset=utf-8," + encodeURI(csv); link.download = "time-duration-data.csv"; link.click(); }function exportPDF() { const { jsPDF } = window.jspdf; const doc = new jsPDF(); doc.setFontSize(22); doc.setTextColor(37, 99, 235); // Primary Blue doc.text("Time Duration Calculator Report", 14, 22); doc.setFontSize(10); doc.setTextColor(100); doc.text("Generated: " + new Date().toLocaleString(), 14, 30); const hist = JSON.parse(localStorage.getItem('timeCalcHistoryV2')) || []; if(hist.length) { const rows = hist.map(h => [h.s, h.e, h.r]); doc.autoTable({ head: [['Start Date', 'End Date', 'Duration']], body: rows, startY: 40, theme: 'grid', headStyles: { fillColor: [37, 99, 235] }, columnStyles: { 2: { cellWidth: 80 } } // Wider column for duration }); } else { doc.text("No history data found.", 14, 50); } doc.save("Time_Duration_Calculator.pdf"); }