Comment by bialpio

> Seen from within the meeting, it does not really matter if you start 5 minutes late or end 5 minutes early.

It matters because there sometimes are meeting where it is very important to know how much time you have to prepare appropriately. As long as the expectations are set beforehand, it matters less.

I roughly agree with the rest of your post. "Just be punctual" is a cop out that ignores the fact that I need to have enough breaks between meetings before I can even think about being punctual. Make space for breaks and enforce the time allocated is imo the solution, it matters less where exactly the 5-minute break fits (but I tend to agree that people would more likely end on the full hour, so that would mean we need to start 5 past).