Is uptime value valid in an ovz container?

How is this possible?

host node

[root@ovz1 ~]# date && uptime
Thu Jan 24 19:19:41 EET 2013
 19:19:41 up 25 days, 19:58,  1 user,  load average: 0.09, 0.07, 0.08

guest container

root@srv2 [~]#  date && uptime
Thu Jan 24 19:19:42 EET 2013
 19:19:42 up 36 days,  2:20,  1 user,  load average: 0.10, 0.07, 0.06