everyday timeperiod strange results

[J.M.]

define timeperiod {
        timeperiod_name         tp_backupcheck
        alias                   bla
        day 1 - -1              08:00-08:15
}

define service {
        use                     normal
        host_name               bla01
        service_description     bla backup
        check_command           check_bla
        max_check_attempts      1
        normal_check_interval   3600
        retry_check_interval    1800
        check_period            24x7
        notification_interval   0
        notification_period     24x7
        notification_options    u,c,r
        notifications_enabled   0
}

Today is Jan 3 and I get:
Service check scheduled for Tue Feb 1 08:00:00 CET 2011 :-\


------------------------------------------------------------------------------
Learn how Oracle Real Application Clusters (RAC) One Node allows customers
to consolidate database storage, standardize their database environment, and, 
should the need arise, upgrade to a full multi-node Oracle RAC database 
without downtime or disruption
http://p.sf.net/sfu/oracle-sfdevnl
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null