Embodiments describe a method and a system to display a calendar system. The method and system to receive a request to display at least one filtered event in a calendar display interface, wherein the at least one filtered event is filtered from a plurality of categories based on selected criteria, wherein a collection of events is selected from an event database based on the selected criteria, and each collection of events forms a specific subcalendar of a plurality of subcalendar; and to receive a request to display selected ones of the specific subcalendars in the calendar display interface.