Outlook - Calendar Sharing from Outlook
1. Go to Calendar
2. From the Home tab, locate the Share Calendar button in the Share section;
3. A calendar invitation email will be created
4. Enter the email address of the person you wish to share and set the level of details you wish them to see;
5. Click Send
The recipient will receive an invitation in an email message telling them that you’ve shared your calendar. The invitation in the email message includes a URL to access the calendar.