To change an appointment's start time within a particular day, simply drag and drop the appointment on the appropriate time slot. If you wish to move the appointment to another day on the same month then drag the appointment to the calendar in the top right of the Diary View and drop the appointment on the appropriate date in the calendar. The appointment will be moved to the same time on that date.
To change the appointment's start time to a date on a different month, bring up the appointment dialog box and enter the required date into the Start Time field. Press OK to save your changes.
You can change an appointment's duration from the Appointment dialog box. Alternatively, move the mouse over the bottom-most part of the appointment, depress the left mouse button and drag the mouse to stretch the appointment outline. Releasing the left mouse button will change the appointments duration.
