Calendar and Time Schedule

[Jeff Honken]

Has anyone created a scheduling app and would share how they did it.
I'm starting a project that will require a calendar and a time element.
When a particular date is chosen a time grid needs to be displayed.  It
then needs to allow the user to schedule that block of time.  It
basically needs to work like the Calendar in Microsoft's outlook.  Any
help would be greatly appreciated.  Jeff