Time slow by one hour

In my application I have to correct the time stamp on event
discussion posts. Perhaps they are not observing DST? In any case, they
are slow by one hour.
how to do this ? I have following type of code and I have been using
rails 1.3:-

<%= frmt_note_date(message.created_on) %> at
at ').last)

above code shows me:- 9/08/2008 at 4:32 AM