A method, system, and program are provided for managing flexible events within an electronic calendar. A calendaring controller schedules fixed events requiring a fixed time slots and flexible events that are flexible for scheduling over a particular time period for a particular duration, wherein the particular time period is greater than the particular duration. The calendaring controller sets each flexible event at a particular time slot within the particular time period for the particular duration. Responsive to the calendaring controller detecting a request for a new event for an additional time slot overlapping the particular time slot, the calendaring controller repositions the flexible event to at least one other time slot of the particular duration during the particular time period to allow for scheduling the new event during the additional time slot.