The document discusses how to use the calendar feature in Moodle. The calendar is displayed on the right side of the Moodle homepage and highlights dates that have scheduled events. Users can view the calendar and event details for all courses they are enrolled in or select a single course. Dates are color-coded based on the event creator. Users can add new events by selecting the date and time and specifying additional details. Events added by the user will then appear on the calendar.