You can open appointments you've previously created and make changes.
Double-click the item you want to open.
If you're modifying a repeating item, when you're prompted, select The Series to modify every item in the series or to change the repetition pattern. If you select This Occurrence, your changes affect only that occurrence.
To change the subject or location of the appointment, enter new text in the appropriate boxes.
To change the date and time of the appointment, in the Start time and End time lists, change the start and end time of the new entries.
Make any other changes you want, for example, the appointment's categories or how time is shown.
Click Save and Close or press CTRL+S before closing the appointment form browser window.
For more information about how to use keyboard shortcuts with appointments, see "New Appointment and Meeting Request Forms" in Keyboard Shortcuts.
What else do I need to know?
If you want to change only the date or time of an appointment or meeting, you don't have to open it to modify it. To change the time of an appointment or meeting, drag the item to the new time. If you change the time of a meeting, you'll be prompted to send an update to the attendees. For more information about how to modify meetings, see Modify a Meeting.
What if I want to know more?