Vegas 19:
This is just a little-ish issue, but I have a lot of renders that can run beyond 24 hours. What I've noticed is that the render stats display doesn't actually contain a "days" position, nor do the hours count above 24, so a render that takes 1 day, 2 hours, 35 minutes only shows as 2 hours, 35 minutes.
This may sound trivial, but when doing troubleshooting/optimizing, being able to screenshot those values accurately is a help, as it would be for long-unattended renders.
"Simple" solution: don't have the render time roll over at 24 hours, but instead keep counting, and give it a 3rd digit position. I don't see a need for a literal days column; the expanded hours column would be more useful.