Every appointment involves a time and a location. In addition to defining a starting time, you can also define an ending time and indicate whether you want your iPhone to alert you ahead of time and whether you want to schedule the appointment to repeat at particular times.
To create an appointment, do this:
From the Home screen, tap Calendar. If you have already created appointments, they'll be listed in the Calendars screen, as shown in Figure 38-1, which shows how appointments look in the list view. If you haven't created any appointments, this screen will be blank.
Figure 38-1. The All Calendars screen displays appointment ...