Check chapter timing including the last segment

1. Prepare the example

Set actual video duration to 180 seconds for the passing example. Then change it to 125 seconds for the failing example.

0:00 Introduction
1:00 The evidence
2:00 Conclusion

2. Follow the steps

1. Open YouTube chapter formatter and paste the three chapter lines below. Enter a final video duration of 180 seconds.
2. Run the formatter. The normalized output uses HH:MM:SS; all three chapter durations are 60 seconds.
3. Change duration to 125 and run again. The final segment is five seconds, so an error should ask for at least ten seconds. No corrected list is invented.
4. Measure the final video export and review your actual titles before putting the list into a YouTube description. Changes to the cut require a new timing check.

3. Compare your result

00:00:00 Introduction
00:01:00 The evidence
00:02:00 Conclusion

The tool checks basic timing only. It does not fetch video, inspect your channel or guarantee chapter eligibility; consult YouTube’s current requirements.

Reference

The example tests this tool’s stated behavior. The external reference describes the wider format or workflow; it does not certify Topicut.