How come idle time > uptime

["James He" <icrazy@gmail.com>]

Hi,

When I ran "w" command, I was so surprised to find that the idle time
is 3 times bigger as the uptime. How come?

$ w
 15:11:10  up 61 days,  1:20,  4 users,  load average: 0.02, 0.01, 0.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU  WHAT
root     tty1     -                11Aug05 185days  0.05s  0.05s  -bash


James