+ Kronolith System Calendars System Calendars are owned by nobody and can only be setup byadministrators and you must be logged in with the mode set to "Basic". One advantage is youadministrators. They do notseehave a user as "owner". In APIs and sync protocols, these calendars are identified by a pseudo owner -system-. In SQL backends, theowner's name displayed in the calendar listing as thereowner string usually isno owner.empty.