- Can I subtract durations to get a negative result?
- Yes. If you subtract a longer duration from a shorter one, the result is shown as a negative time. This is useful when calculating time overruns.
- How do I convert hours to minutes or seconds?
- Enter the duration (e.g. 2h 30m 0s) and the result shows the equivalent in seconds and minutes. You can also add a zero-length second duration to convert a single duration.
- Is there a limit on the duration I can enter?
- No practical limit — you can enter large values in the hours field (e.g. 10,000 hours) and the calculator will sum or subtract them correctly.
