How to share an Outlook Calendar on Outlook website

Step 1: Go to your Outlook account on the website, then select the Calendar icon on the left.
Choose the calendar you wish to share and right-click on it. If it can be shared, you’ll have a Sharing and permissions option. Select it.


Step 2: In the dialog that pops up, type an email address into the box. As you start typing, options might populate that you can select.
Either complete the email address or select from the list.


Step 3: When you’ve added the user, you’ll have the option to set permissions. The options can view all details or can edit.
Select accordingly, and then click Share.

The user will populate and then you can add another user. Continue adding users until you’ve added everyone.



Credit : https://www.digitaltrends.com/computing/how-to-share-your-outlook-calendar/#dt-heading-how-to-share-your-outlook-calendar-on-the-website