time: time (the GNU time command for measuring program resource use) time: time: The `time' command runs another program, then displays information time: about the resources used by that program, collected by the system time: while the program was running. time: time: GNU time was originally written by David Keppel, with later versions time: worked on by David MacKenzie, Arne Henrik Juul, and Francois Pinard. time: time: