US Patent 9552571 Electronic device and method of meeting notification

A method of providing a meeting notification includes adding an indication of an observer to a calendar event in a calendar graphical user interface at an organizer electronic device, saving the calendar event associated with the observer at the organizer electronic device, and sending an observer electronic message from the organizer electronic device to an observer electronic device. The observer electronic message includes the calendar event for storage at the observer electronic device with a period of time, associated with the calendar event, indicated as free time.