To connect your Office 365 calendar to FreeBusy:

  1. Go to sign up.
    Or link new calendar if you’re already signed in.
  2. Provide the email address associated with your Office 365 calendar.
  3. FreeBusy will try to detect your calendar provider.
  4. You can also pick Office 365 manually.
  5. Click Sign in and authorize FreeBusy to access your calendar.