Easily readucing length of timeline

Hi,

I was working with a file in Storyline 360, and one time I was saving, Storyline crashed and when the file was recovered, the timeline of the slide I was in when it crashed the first time, was no longer accessible, crashing every time I went to that slide.

Using another computer, I saved a new version of the file, and back on my computer, I was able to access the timeline of that slide, however, the length of that slide was 97300 seconds (!), so I was wondering if there is an easy way to reduce that length to a much more normal number other than dragging the end of the timeline? Maybe typing a number somewhere?

Thanks!