How to Share Your Calendar in Microsoft 365

Outlook on the web

1. Open the Calendar app.
2. In the top right of the menu bar, click Share and select the calendar you want to share.
3. Enter the name or email address of person you want to share your calendar with.
4. Choose how much information you want this person to see. 
5. Click Share.

See Sharing your calendar in Outlook Web App for more information.

Outlook for Windows

1. Click the calendar icon in the navigation pane.
2. Select the calendar you want to share.
3. On the  Home tab, in the Share group, click Share Calendar.
4. In the email that opens, enter the name of the person you want to share your calendar with.
5. Select the level of detail you want the person to see.
6. Click Send.

See  Share an Outlook calendar with other people for more information.

Outlook for Mac

1. At the bottom of the navigation pane, click Calendar.
2. Select the calendar you want to share.
3. On the Home tab, click Calendar Permissions.
4. In the Calendar Properties dialog box, click Add User.
5. Search for the person you want to share your calendar with and click Add.
6. Select the Permission Level for the person you added.
7. Click OK.

See Share your calendar in Outlook for Mac for more information.