I can tell as a fact that no one has 3 hours anymore. No one. It is IMPOSSIBLE to find 3 hours in people's schedules. People are just too busy.
Learn from me. If I propose any program, I make sure it takes less than 30 minutes, and maybe even less than 15 minutes of a person's time. My motto is deliver a bit of information exactly when they need it and move on. My ultimate goal is to be a faint, useful smell wafting through the corridors. That is, after all, the easiest conversation to have with my business colleagues.
Read it all.