Nagios - Custom Report Generation

Hi,

I want to generate a custom report in “Nagios-3.2.0”. I have defined the work-hours in “timeperiods.cfg” as follows:

#workhours’ timeperiod definition

define timeperiod {

timeperiod_name 0800-2000
alias full time

monday 08:00-20:00
tuesday 08:00-20:00
wednesday 08:00-20:00
thursday 08:00-20:00
friday 08:00-20:00
saturday 08:00-20:00
}

Now, if I replace “saturday” with “2010-03-27” or “march 27” as shown below:

#workhours’ timeperiod definition

define timeperiod {

timeperiod_name 0800-2000
alias full time

monday 08:00-20:00
tuesday 08:00-20:00
wednesday 08:00-20:00
thursday 08:00-20:00
friday 08:00-20:00
2010-03-27 08:00-20:00
}

Nagios is not generating report for the given date (2010-03-27).

How can I modify “timeperiods.cfg” so that I can generate reports for the given date(s) ?