A method of conserving power for a navigation application of a device is provided. The method determines a time for timely departure to an event that is stored in a calendar application of the device. The time for timely departure is determined based on the starting time of the event and an estimated travel time from the current location of the device to the location of the event. The method provides the time for timely departure to the calendar application. The method calculates the time for providing an update to the time for timely departure based on the remaining time before the time for timely departure. The method hibernates the navigation application until the time for providing the update. The method repeats the determining, providing, calculating, and hibernating several times.