You can share your calendar with other following:
Internal users or groups. You select the type of privileges to grant, either:
Viewer. The Grantee can see the activities posted to your calendar and the status of meeting requests, but cannot make any changes to your calendar.
Manager. The Grantee has full permission to create meetings, accept or decline invitations, and edit and delete activities from your calendar.
None is an option to temporarily disable access to a grantor's shared calendar without revoking the share privileges. The Grantee still has the calendar in their calendar list but cannot view or manage activities on the grantor's shared calendar.
External guests. You create a password to access the shared calendar. Guests must enter this password to view the calendar. They cannot make changes to the calendar.
Public. Anyone that knows the URL to the shared calendar can view it. They cannot make any changes to the calendar.
Right-click on the calendar to share and select Share Calendar.
On the Share Properties dialog select whom to share with.
When you choose Internal, you can choose addresses from the list that appears as you type or type addresses that are not in the list. The user or group must be a valid address in your company's mail server.
In the Role area, selected the access permissions.
In the Message area, select which type of message to send. The options are as follows:
Send standard message. The standard share notification message is sent to the email address.
Add a note to standard message. You can add additional information to the standard message.
Click OK.
When you choose External guests, enter the guest email addresses. You can enter more than one address in the Email: field. Put a semi-colon (:) between addresses.
Enter the password that users must enter to view your calendar.
In the Message area, select which type of message to send. The URL to your calendar and the password is included in the email message.
Send standard message. The standard share notification message is sent to the email address.
Add a note to standard message. You can add additional information to the standard message.
Click OK.
When you choose Public, anyone who has the URL can view your calendar. No password is required.
You can revoke permissions at any time.
Right-click a shared calendar.
Click Edit Properties. Users sharing the folder are listed.
Click Edit
to change permissions, or
Click Revoke to remove permissions.
Select whether a message describing the change should be sent.
Click OK.