I find tomorrow as the most confusing of the terms than man uses in everyday life. (and yes this comes from a man who understands rocket science)
Let me give you an example.
1) For most people, tomorrow is like horizon. You feel its not too far away, but the moment you approach it, it goes even further.
2) Then when you are working across time zones, tomorrow can be real confusing. You never know whether its your tomorrow or his tomorrow. So if my US counterpart says in an early morning meeting that I need to do by tomorrow morning, that means I need to finish the task in 24 hours. Right, but more often than not it means I need to finish the task by the evening (his morning)
3) Even for those living in the same time zone tomorrow morning could be a bit confusing. This is specially when we are working late. For me the day rolls over only after I have caught some sleep. So if I am up late night and somebody else commits that he will finish the task by tomorrow morning, then in the joy I often forget that the other person is demanding for 30 hours and not 6 hours.
What is your definition of tomorrow?