Calendar offers two types of calendars to help manage your events:
Personal calendars display individual users' lists of events. One-on-one meetings and parties are great for your personal calendar. You can display or hide your personal calendar by clicking Personal Calendar in the Calendars section.
Group calendars display events for all of a group's members. Group calendars work well for events like weekly meetings or company functions. You can display or hide group calendars by clicking the name of the calendar in the Calendars section.