An appointment in Outlook is an activity you enter for a specific time that, unlike a meeting, does not involve other people or resources. When you schedule an appointment, you block out a day, a time, and a location for that appointment to occur. Outlook also makes it easy to set a reminder that flashes on your screen and plays a sound to alert you to the appointment.
Click the Calendar icon on the Navigation Pane.
Choose New from the File menu.
Choose Appointment from the New submenu.