Calculate the exact difference between two dates and times. Shows breakdown in years, months, days, hours, minutes, and seconds. Also displays total days, hours, minutes, seconds, and business days excluding weekends.
Breakdown
Totals
1
Business Days (excludes weekends)
LevnTools Time Difference Calculator lets you calculate and convert time values directly in your browser. Everything runs locally in your browser — your dates and timestamps never leave your device. Unlike cloud-only alternatives that require uploads and accounts, this tool is completely free with no usage limits or watermarks. It is designed for developers working with Unix timestamps, project managers calculating deadlines, remote teams coordinating across time zones — anyone who needs a fast, reliable time tool without the overhead of installing software. Just open the page and start working.
Time Difference Calculator is used by a wide range of people. Explore how different groups use this tool:
Convert between Unix timestamps and human-readable dates.
Add/subtract dates or find the difference between two dates.
Convert times between timezones with a world clock.
Convert between metric and imperial length units.
Format, beautify, minify, and validate JSON with syntax highlighting.
Enter a start date/time and an end date/time. The tool instantly calculates the difference and displays it as a breakdown (years, months, days, hours, minutes, seconds) plus totals (total days, hours, minutes, seconds). All calculations happen in your browser.
Business days are weekdays (Monday through Friday) excluding Saturday and Sunday. The tool counts only business days between the two dates, which is useful for project planning and deadline estimation.
The tool shows a negative difference with a warning indicator. You can also use the Swap button to quickly reverse the start and end dates.
Yes. Click any stat box (years, months, days, etc.) to copy its value to your clipboard. You can also use the "Copy Result" button to copy the full breakdown as text.
Yes, completely free with no signup required. All calculations run entirely in your browser — no data is sent to any server.