I don't know why, but I have an awful lot of trouble staying alert at our staff meetings. They are always on a Monday morning, when you'd think people would be at their most alert - but not me. I manage to keep my eyes open, but thank goodness I don't have to do anything other than listen and nod my head occasionally.
They must all think I don't do much because I never speak up to tell everyone what I've gotten up to in the last week. I doubt they think I'm just tired from my wild and crazy weekends.
On the other hand, afternoons are not a great time for meetings either because of the great possiblity of post-lunch drowsiness.
Perhaps there is no good time for a meeting.