Time Duration Calculator
Use the calculators below to find the hours, minutes, and seconds between two points in time.
Calculate Duration Between Times
Calculate Duration Between Dates
How to Calculate Time Duration
To find the duration between two times on the same day, follow these steps:
- Convert both times to a 24-hour format. For PM hours, add 12 (e.g., 2:00 PM becomes 14:00). 12:00 AM is 00:00.
- If the end time's minutes are greater than or equal to the start time's minutes, subtract the times directly.
- If the end time's minutes are less than the start time's minutes, you need to "borrow" from the hour. Add 60 to the end time's minutes and subtract 1 from its hour before subtracting. For example, to calculate 13:20 - 9:50:
- Adjust 13:20 by borrowing an hour: it becomes 12:80.
- Subtract the minutes: 80 - 50 = 30 minutes.
- Subtract the hours: 12 - 9 = 3 hours.
- The result is 3 hours and 30 minutes.