You can create three similar types of items in the Calendar folder. Appointments have starting and ending times blocked out in your schedule; events, such as vacations and business trips, last 24 hours or more; and meetings are appointments to which you invite other people.
→ To see how Outlook can help you coordinate meetings, see "Planning a Meeting with Outlook".
If you want to add a new item to your personal calendar and you know the date and time of the appointment or event, you can open a new appointment form with those details already filled in. Open or switch to a window displaying the contents of the Calendar folder, and then use any of these techniques:
From any Day view (including multiday views), ...