Determining user stays of a user of a mobile device

A mobile device, comprising:

• a location sensor operative to sense location information of the mobile device;
• a transceiver operative to establish a communication link with a network server;
• and
• a controller, wherein at least one of the controller or the network server are operative to:
• determine the mobile device is within a specific distance of a specific location for at least specific minimum time duration based on the location information;
• determine a start time of a user stay based on the location information, the specific location and the specific distance;
• and
• determine an end time of the user stay based on the location information, the specific location and the specific distance.

A network server operative to:

• receive sensed location information of a mobile device, wherein the location information was sensed by the mobile device;
• and
• wherein at least one of the network server or a controller of the mobile device are operative to:
• determine the mobile device is within a specific distance of a specific location for at least specific minimum time duration based on the location information;
• determine a start time of a user stay based on the location information, the specific location and the specific distance;
• and
• determine an end time of the user stay based on the location information, the specific location and the specific distance.