time(1)

NAME
     time - report how long a command takes

SYNOPSIS
     time command

EXAMPLES

     time a.out          # Report how long a.out takes

     time ls -l *.c      # Report how long ls takes

DESCRIPTION

     The command is executed and the real time, user time, and system time (in
     hours, minutes, and seconds) are printed.  Shell scripts cannot be timed.

SEE ALSO
     times(2).