How To: Add Shared Calendar Outlook Web
  1. Click the calendar icon in the left hand side button bar.
  2. Click "Add calendar".
  1. Click "Add from directory".
  2. Select your email address from the dropdown.
  3. Search for and select the owner of the calendar you want to add.
  1. Click the X in the upper right to close the window (the "Add" button doesn't seem to work).
  1. Click "Save".
  1. The shared calendar has been added!