In Microsoft Office Outlook 2007, you can view multiple calendars at once. These can be your calendars, shared calendars from other people, Internet Calendars, or Internet Calendar Subscriptions.

You can open a second calendar in a new window and display up to 30 calendars in side-by-side view. You can also overlay calendars to see transparent calendars stacked on top of each other. This view is useful when you want to find a common free time slot on several different calendars.

In Calendar, the Navigation Pane (Navigation Pane: The column on the left side of the Outlook window that includes panes such as Shortcuts or Mail and the shortcuts or folders within each pane. Click a folder to show the items in the folder.) shows a list of your calendars under My Calendars. This list includes your default primary calendar in Outlook that displays your free/busy time to other people, and where meeting requests that you accepted are saved.

Other calendars, or secondary calendars, can include calendars that you created to track a project, a personal schedule, or some other calendar event that you do not want to mix with the items on your default calendar. For example, your default calendar might be your calendar for work, and your second calendar might track your child's soccer team schedule.

Note When you share your default calendar, appointments on secondary calendars are not displayed to other people and do not affect your free/busy availability.

1. In Calendar, in the Navigation Pane, right-click the name of another calendar that you want to view.
2. Click Open in New Window.
   
   The calendar that you selected opens in a new Outlook window.

Open a calendar in side-by-side view

• In Calendar, in the Navigation Pane, select the check box of another calendar that you want to view.
  
  The calendar that you selected opens next to the calendar that is already displayed.
  
  Note At least one calendar must always be displayed.

1. In Calendar, in the Navigation Pane, select the check box of another calendar that you want to view.
   
   The calendar that you selected opens next to calendar that is already displayed.
2. Repeat step 1 for each calendar that you want to view.
3. On the Calendar tab , click .
   
   The calendars are now in overlay mode.
   
   To add another calendar to the overlay, repeat this step.

Note At least one calendar must always be displayed.

1. In Calendar, on the tab of the calendar that you want to remove from the overlay stack, click .
   
   The tab moves back to the right. The calendar that you selected is no longer displayed in overlay mode.
2. Repeat step 1 for each calendar that you want to remove from the stack.

Note At least one calendar must always be displayed.