Log in to user account that will shared Calendar Event.
- Go to Settings > Sharing > Shared Resources
- Click New
- Select “My Calendar”
- Click Next
- Select Users that will received this sharing or you may choose Groups and select Everyone if you want to share with all users.
Under Access, choose Read-Only and click Save
Login to others user that will get this Calendar
- Go to Settings > Sharing > Mapped Resources
They will see list user that shared calendar with Status is Detached.
- Click Attach
- Edit Friendly Name of calendar and click Save
Status will change to Attached
Done.
Now user can create event on calendar and user will see on their calendar.