Lovely Website, Carry on the good work.

Seems like this method might be the issue: The problems seems to be that the ical feed doesn't have a STANDARD section, only a DAYLIGHT.

/lib/ri_cal/component/timezone.rb:50

    # Returns the set of TimezonePeriod instances that are valid for the given
    # local time as an array. If you just want a single period, use
    # period_for_local instead and specify how ambiguities should be resolved.
    # Returns an empty array if no periods are found for the given time.
    def periods_for_local(local)
      local = local.to_ri_cal_date_time_value
      candidate_standard = last_before_local(standard, local)
      candidate_daylight = last_before_local(daylight, local)
      if candidate_daylight && candidate_daylight.swallows_local?(local, candidate_standard)
        []  # Invalid local time
      elsif candidate_standard
        if candidate_daylight
          if candidate_daylight.dtstart > candidate_standard.dtstart
            [candidate_daylight]
          elsif candidate_standard.ambiguous_local?(local)
            [candidate_daylight, candidate_standard]
          else
            [candidate_standard].compact
          end
        else
          [candidate_standard].compact
        end
      end
    end

mst = <<MST
BEGIN:VCALENDAR
PRODID:-//SuperSaaS//Super Schedule//EN
METHOD:PUBLISH
VERSION:2.0
CALSCALE:GREGORIAN
X-WR-CALNAME:Fluid Meeting Space
X-WR-TIMEZONE:America/Denver
X-WR-RELCALID:40409
BEGIN:VTIMEZONE
TZID:America/Denver
BEGIN:DAYLIGHT
TZOFFSETFROM:-0700
TZOFFSETTO:-0600
DTSTART:20110313T030000
RDATE:20110313T030000
TZNAME:MDT
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:1641738@supersaas.com
DTSTAMP:20110519T192544Z
DTSTART;TZID=America/Denver:20110428T120000
DTEND;TZID=America/Denver:20110428T130000
SUMMARY:Dusty
DESCRIPTION:Test Meeting
CREATED:20110428T210637Z
LAST-MODIFIED:20110428T210637Z
URL:http://www.supersaas.com/schedule/red27/Fluid_Meeting_Space?year=20...
onth=4&day=28 END:VEVENT
END:VCALENDAR
MST

Is this a ical issue or a ri_cal issue?

Here's the code I ended up using.

module RiCal
    class Component
        class Timezone < Component
            def periods_for_local(local)
                puts "PATCHED Periods for local"

                local = local.to_ri_cal_date_time_value
                candidate_standard = last_before_local(standard, local)
                candidate_daylight = last_before_local(daylight, local)
                if candidate_daylight && candidate_daylight.swallows_local?(local, candidate_standard)
                    []  # Invalid local time
                elsif candidate_standard
                    if candidate_daylight
                        if candidate_daylight.dtstart > candidate_standard.dtstart
                            [candidate_daylight]
                        elsif candidate_standard.ambiguous_local?(local)
                            [candidate_daylight, candidate_standard]
                        else
                            [candidate_standard].compact
                        end
                    else
                        [candidate_standard].compact
                    end
                elsif candidate_daylight
                    [candidate_daylight]
                end
            end
        end
    end
end