NCAD - Calendar Sharing
1) Click on Settings
2) Click on the Calendars tab under the heading ’Calendar Settings’.
3) Click on the ‘Shared: Edit Settings’ option.
4) Tick the box beside "Share this calendar with others"
5) Enter the email address of the person you wish to share with.
6) Change the "Permission Settings" to what you want the other person to see
7) Click "Add Person"
8) Finally click "Save"