(Trying for another pitch) Changing the increment time to 15 minutes from 30 minutes.
On our request forms, we have instructed our users to add a 10 or 15 minute buffer to their start and end time, when they are adding a meeting time. We are still receiving a lot of request to change the present increments of 30 minutes to 15. We advise our users to do this so the meeting time does not overlap with a class' start or end time. We have had many users complain that they're either abruptly ending their meeting or delaying their start time.