uptime(1)

NAME
     uptime - show how long system has been up

SYNOPSIS
     uptime

DESCRIPTION
     Uptime prints the current time, the length of time the system has been
     up, and the average number of jobs in the run queue over the last 1, 5
     and 15 minutes.  It is, essentially, the first line of a w(1) command.

FILES
     /unix     system name list

SEE ALSO
     w(1)