Time discrepencies between file and file viewer time

The file viewer shows 45 minutes for the length of a file but the file itself is only 39 minutes long. Is there something I am doing wrong? Why the discrepancy?

Interesting. Are you sure you are not overlooking the vertical dotted red line that indicates the true file end time? See attachment.

Can you share a picture of what you’re seeing? That may help.

For a specific file only?

My Bad…I was looking at an out of place marker. Sorry for the confusion. Thanks for the replies.