Abstract: Systems, methods and computer program products are introduced for generating prioritized reminders as a time series. Reminder initiation includes selection of an appropriate reminder delivery method. Exemplary embodiments include creating an event having an event time in the electronic calendar and assigning a reminder rate as a parameter to a time series generating processor. The generating function outputs a series of reminder times such that inter-reminder times continuously decrease and that the reminder series, in its initial form, is defined as unending. Additional exemplary embodiments include assignment of an importance to the event as a measure of the relative value or worth of the event to the calendar user. Time remaining to the event, alone or in combination with event importance, are used to determine reminder priority and thus delivery method or delivery mode, based on user configuration preferences for reminder volumes.