In Day, Week, or Month view, display the day for which you want to schedule an appointment.
Double-click that day to open the Appointment Editor.
Choose the Start and End times.
The default appointment duration is one hour. If your appointment is longer or shorter, edit the time in the End field.
Type a description of the appointment in the What field.
For example, you may want to enter the appointment's location and purpose.
If you want to add optional settings to an appointment, see "To Set Appointment Options".
The appointment is added to your calendar.
Click Cancel to close the Appointment Editor.