Open a Resource Calendar

Instructions on how to open a resource or shared calendar using Office 365 Exchange.


From Outlook Web Application (OWA):

  1. Navigate to Office 365 OWA by logging in at (Instructions on how to login.)
  2. Click on the App Launcher (waffle) at the top left corner of the page and select Calendar.
  3. From the left navigation pane, right click on Other Calendars. Select Open Calendar.

  4. Type in the name of the resource cleandar in the From Directory field. Select from the options displayed or click Search Directory for more options.

  5. Click Open after you have made your selection.

  6. The resource calendar should now appear.



From Outlook Client:

  1. From the Outlook client, click Calendar
  2. Click the Home tab in the ribbon
  3. In the Manage Calendars group, click Open Calendar
  4. Select From Address Book (note that you can also search From Room List or Open Shared Calendar, depending on the type of resource calendar you are looking for)
  5. Type the name of the resource calendar to begin the search
  6. Select the resource and click OK
  7. The resource calendar should appear in the left pane. Check the box next to its name to view the calendar.


From a mobile device:

IMSS recommends setting up shared/resource calendars in advance using OWA or Outlook. Once you have added the calendar(s) as instructed above on this page, follow the instructions below to view the calendar(s) from your mobile device.

  1. Launch your mobile device's web browser (e.g. Safari on iOS)
  2. Navigate to
  3. Enter your access.caltech username in the form (

  4. You will be taken to the Caltech Office 365 login page. Login with your access.caltech username and password.

  5. Click on the Calendar icon at the bottom of the screen. Then click the three-line menu navicon at the top left of the screen.

  6. You should now see your list of resource or shared calendars under Other Calendars. Select the calendar you want to view.