First, is MS Outlook available? It does schedules pretty well. And you can tie Access and Outlook together with a little effort. I might take the approach of adding the meeting to my Outlook and then after the fact, import the data to Access and include a Memo field or something similar for the meeting notes.
Second, search this forum for the following topics:
Schedules
Bookings
Reservations
Outlook
"Bookings" and "Reservations" will give you hints about how to work with projections to a future timeline. At least some articles of "Scheduling" will also do that. The other side of the "Scheduling" articles would be how to make something happen at a specific time on the computer outside of Access, which doesn't apply to your question. But that extra data is because "Scheduling" is somewhat ambiguous.