Time Duration Calculator
Calculate the duration between two times or add/subtract time from a given time.
Start Time
End Time
Duration
Days
Hours
Minutes
Seconds
Total:
Base Time
Time to Add/Subtract
Result
New Date & Time
How to Use This Time Duration Calculator
Simply input a start and end time using the time pickers above. The tool will automatically calculate the exact time difference between them in hours, minutes, and seconds. Useful for tracking work hours, time elapsed, and more.
All calculations are done locally in your browser to protect your privacy.