Calendar Sharing

I am confused as to the functionality of calendar sharing.

I have set up a Zoho Business account. I added 3 users.

Is it possible for each user to keep their own calendar, through their own log in name, but for those calendars to be shared with the other users in the business?

Can there be private and public calendars each person has, and the public ones be shared across the 3 users? How?

Thank you for your help.