When subtitling, the duration column shows the duration a subtitle is displayed in the format H:MM:SS:Milliseconds. I have yet to see a subtitle that is visible for a whole minute, let alone an hour.
It would be much easier to see the relevant information (seconds and milliseconds) if all the zeros for hours and minutes were just omitted and the display would be
04.880 instead of
0:00:04.880
Seconds could count up to 99, making it possible to deal with subtitles that are visible for a minute and a half.
Thank you for considering this idea.
Daniel