You can set the following options from the Preferences>Calendar folder. Remember to click Save to save any changes you make to your preferences.
Default View. Select how you would like to view your Zimbra calendar. The default is by work week. The view options include: Day, Work Week, 7 Day Week, Month, List, and Schedule.
Start Week On. Specify which day of the week should be the first day of the week in your calendar.
Default appointment visibility. This can be set to either Public or Private. The default is Public, all incoming calendar invites are marked as Public unless the creator marked the meeting notification as private. When this is set to Private, all incoming calendar invites are marked as Private. Details about events that are marked private do not display.
Always show the mini-calendar. Specify whether the mini-calendar is displayed at the bottom of the Overview pane.
Show Calendar with week numbers. When this is enabled, the week numbers are displayed on the mini-calendar.
Automatically add received appointments to calendar. When this is checked, email invitations sent to your Inbox are automatically added to your calendar. You can accept or decline the invite from either the Inbox or Calendar. When this is not checked, the appointment is added to your calendar when you click Accept or Tentative.
Enable delegation for Apple iCal CalDAV client. Apple iCal can be configured to access your calendars using the CalDAV protocol. When this is enabled, shared calendars are displayed in the iCal Accounts Delegation tab on an Apple Mac computer. When this is disabled, all shared calendars display in the Advanced Email Calendars list. This feature is available to be used with iCal 4.0 or later.
Note: The following is not available when accessing Advanced Email shared calendars from the iCal Accounts Delegation tab.
Using the + or - links to add or delete shared calendars from the Delegation tab.
Viewing the specific type of role assigned to the shared Calendar. The Delegation tab only shows whether the role is read-only or read/write. You cannot tell if you have Manage or Admin rights.
Sharing your calendars with others from this tab.
After responding to an invitation delete invite. When this is checked, invitations are automatically moved to your Trash folder after you respond to the invite.
Forward my invites to. You can forward invite emails you receive to one or more users that you have shared your calendar with.
Show reminders. Set the number of minutes before an appointment to be reminded. The default is five minutes. In addition, you can set the type of alert to receive.
Work week and hours. Select the days and times of the week you work. Select Custom to customize work hours by day. This information displays in your free/busy view.
Use the QuickAdd dialog when creating new appointments. Specify whether to create new appointments using the QuickAdd dialog. This is often helpful if you create many appointments without attendees.
Show time zone list in appointment view. Select if you often schedule meetings with other in different time zones.
Permissions. You can specify the type of users who can see your Free/Busy information and who can invite you to meetings. The default is to allow all users to see your free/busy and to invite you to meetings.