The All day Scheduler panel displays appointments that last longer than 24 hours or have the allDay property set to true (don't have specific start/end times). To change the All day panel display mode, assign one of the following values to the allDayPanelMode property:
Displays all appointments that have the allDay property set to true and the ones that last 24 hours or longer. The Scheduler does not display these appointments in the view.
Displays only appointments that have the allDay property set to true. The Scheduler shows other appointments in the view.
Hides the All day panel. The Scheduler shows all appointments in the view.