connect time

Noun

 * 1)  The total amount of time spent by a user of a computer connected to a network.
 * 2)  The amount of time during which a user of a remote terminal is connected with a time-sharing system.
 * 3)  The amount of time that a circuit is in use, usually in a circuit-switched environment.
 * 4) The amount of time it takes to establish a connection.