Create 15-minute interval scheduling

I am working on a special project that requires making one calendar for all the events spanning a couple of months. Many people will peruse the calendar as the primary calendar for the event. Several of the recurring meetings start at 8:15 a.m. and end at 10:15 a.m. I tried to customize the time setting in Outlook, but that does not work. Is there any way to schedule recurring meetings, or one meeting at a time that begins at quarter after the hour, and ends quarter to the hour? It seems like it should be an easy thing to do, but unless it is a user problem, I can't figure out how it can be done shy of programming. As an aside, we are posting the event calendar on the web as a static calendar. Thanks.

I forgot to mention I am using Outlook 2003.