The Time Duration Calculator finds the hours, minutes and seconds between two times of day.
Duration: 9 hours 0 minutes 0.0 seconds
| Duration | 9 hours 0 minutes 0.0 seconds |
| Total hours | 9 |
| Total minutes | 540 |
| Total seconds | 32400 |
Convert both times to seconds after midnight, subtract the start from the end, and convert back to hours, minutes and seconds. If the end time is earlier than the start, the calculator assumes it is the next day.
Worked example (defaults): 8:30 AM to 5:30 PM is 9 hours exactly.
12 AM is midnight and 12 PM is noon. In 24-hour time, 5:30 PM is 17:30. Subtracting is easiest in 24-hour time.
Work shifts, parking and rental times, cooking, travel and exercise all involve time durations. For a full week of work hours with breaks, use the Time Card Calculator; for dates, use the Day Counter.
How do I convert minutes to decimal hours? Divide by 60.
Does it handle daylight saving changes? No, it assumes a normal 24-hour day.
Can I add times together? Use the Time Calculator.