OfficeTalk lets you mark certain days as non-working days. An example of a non-working day is a holiday or a weekend. The ability to mark certain days as non-working is particularly useful for meeting organisers who can see at a glance which users are unavailable as a result of holidays or days away from the office. Planners and Events may be used to define non-working days. For more information see Blocking Out a Diary with a Planner.
OfficeTalk uses colour to distinguish between working days and non-working days. The default setting for Weekly and Monthly Appointment windows is to show working days with a white background and non-working days with a light grey background. Similarly, the default setting for the Daily Appointment window is to show working hours and working days in white and non-working hours and non working days in light grey. You can change this to suit your personal taste. For more information, see Customising the Display .