21. The apparatus of claim 20 , wherein the means for determining the initial start time and the end time further comprises: means for determining the end time based on sharing of messages at a flow rate below second threshold after sharing messages at a flow rate above the threshold.
20. An apparatus to manage a mobile communication, comprising: a transceiver to send and receive data over a network; means for communicating an occurrence of an event of a gathering of people in a physical location; means for sharing messages, including media content, during the event; means for determining an initial start time and an end time of the event based, in part, on a flow of the shared messages during the event; and means for determining a revised start time based on sharing of messages at a flow rate above a threshold during the event, wherein the sharing of messages includes messages received from one member of a group that are distributed to other members of the group.