Share your calendar with colleagues
The easiest way to share your company calendar with colleagues is through Outlook on the web, so visit outlook.office.com/calendar and sign in with your company email address and password if prompted.
Under My Calendars, click the three dots next to Calendar and click on Sharing and permissions.
Enter the email addresses of the colleague you’d like to share your calendar with. You can enter more than one email address here.
By default, your colleague Can view all details of your calendar appointments, and that’s probably what you want. You can restrict this if you wish by changing the option to Can view when I’m busy or Can view titles and locations. When you’re ready, click Share.
That’s it! Your colleague will receive an email inviting them to access your calendar. When they click the Accept and view calendar button in that email, it will appear in Outlook along with their own calendar.