strange TIME of syslogd in top command

["Gao Ya'nan" <abutter.gao%gmail.com@localhost>]

First, my "uname -a" result is:

NetBSD abutter.foo.org 4.99.64 NetBSD 4.99.64 (GENERIC) #0: Wed Jun 11
04:30:05 PDT 2008
builds@wb28:/home/builds/ab/HEAD/amd64/200806110002Z-obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/GENERIC
amd64

and there is the result of "top -t":

load averages:  0.05,  0.03,  0.00          up 0 days,  0:12   09:17:24
68 threads:    9 idle, 57 sleeping, 2 on CPU
CPU0 states:     % user,     % nice,     % system,     % interrupt,     % idle
CPU1 states:     % user,     % nice,     % system,     % interrupt,     % idle
Memory: 129M Act, 840K Wired, 6236K Exec, 110M File, 705M Free
Swap: 1024M Total, 1024M Free

  PID   LID USERNAME PRI STATE      TIME   WCPU    CPU COMMAND      NAME
  117     1 root      85 kqueue/0 480:00  0.00%  0.00% syslogd      -
  401     1 abutter   85 piperd/1   0:05  0.00%  0.00% cvs          -
    0     6 root     223 IDLE/0     0:00  0.00%  0.00% [system]     softser/0
    0    16 root     223 IDLE/1     0:00  0.00%  0.00% [system]     softser/1
    0    13 root     222 IDLE/1     0:00  0.00%  0.00% [system]     softnet/1
    0     3 root     222 IDLE/0     0:00  0.00%  0.00% [system]     softnet/0
    0     4 root     221 IDLE/0     0:00  0.00%  0.00% [system]     softbio/0
    0    14 root     221 IDLE/1     0:00  0.00%  0.00% [system]     softbio/1
    0     5 root     220 IDLE/0     0:00  0.00%  0.00% [system]     softclk/0
    0    15 root     220 IDLE/1     0:00  0.00%  0.00% [system]     softclk/1
    0     2 root       0 IDLE/0     0:00  0.00%  0.00% [system]     idle/0
  452     1 root      43 CPU/0      0:00  0.00%  0.00% top          -
    0    12 root       0 CPU/1      0:00  0.00%  0.00% [system]     idle/1
    0    17 root     127 xcall/1    0:00  0.00%  0.00% [system]     xcall/1
    0     7 root     127 xcall/0    0:00  0.00%  0.00% [system]     xcall/0
    0    47 root     126 pgdaem/0   0:00  0.00%  0.00% [system]     pgdaemon
    0     1 root     125 schedu/0   0:00  0.00%  0.00% [system]     swapper
    0     9 root     125 cacheg/0   0:00  0.00%  0.00% [system]     cachegc

so, you will find that the TIME of syslogd is 480:00, and my uptime is
"up 0 days,  0:12". impossible 480 hours?