Work gripes
A vanc peak is timed because it needs to be drawn 1 hours after the infusion finished. (Otherwise, it wouldn't be the peak level, now would it?)
A PTT is timed because it needs to be done every 3 hours or something like that.
A cortisol is timed because levels fluctuate during the day. An 0800 cortisol will necessarily be different than a 1500 cortisol.
Your morning CBC and BMP is not timed. It can wait until we get to that side of the hospital.
Work gripes
And that's not to say those can't be timed! You may want a CBC a certain amount of time after a blood transfusion to see what their H&H and RBC are. I'm sure there are reasons a BMP may be timed. But these are explicitly being put in as "morning draw". These are routines that the doctor is incorrectly marking timed. Stop it. Get some help.