Central school calendar - One box per class with its own calendar, plus a central calendar that embeds all class calendars. The school administration can see everything at a glance.

Exam calendar - Each department maintains its exam dates in its own calendar, and the exam calendar combines them and shows overlaps immediately.

Personal teaching calendar - Teachers embed the official school calendar into their own teaching calendar and have holidays, conferences, and personal events in one view.

Club calendar - Training times for each team in separate calendars, while the club calendar bundles all events for the board level.