A LITTLE GUIDANCE
Time Duration Calculator — Add Hours & Minutes guide
Combine multiple durations by entering each one in its own row.
How to use
- Fill the hours, minutes and seconds fields and add rows as needed.
- Alternatively paste a list using minutes:seconds or hours:minutes:seconds.
- Review the normalized total and average, then copy the result.
Worked example
- Input
- Enter 1 hour 30 minutes in one row and 45 minutes 30 seconds in another.
- Result
- Total: 2 hours 15 minutes 30 seconds, or 8,130 seconds. Average: 1 hour 7 minutes 45 seconds.
Common questions
Can a minutes field contain 90?
Yes. Row fields accept values above 59 and normalize them in the total. Pasted lists must follow the displayed time format rules.
Does pasting 1:30 mean one hour and thirty minutes?
No. Two-part input means minutes:seconds. Use 01:30:00 for one hour and thirty minutes.