# File lib/merb-helpers/date_time_helpers.rb, line 106
      def relative_time_span(times)
        times = [times.first, times.last].collect! { |t| t.to_time }
        times.sort!
        if times.first == times.last
          "#{prettier_time(times.first)} #{relative_date(times.first)}"
        elsif times.first.to_date == times.last.to_date
            same_half = (times.first.hour/12 == times.last.hour/12)
            "#{prettier_time(times.first, !same_half)} - #{prettier_time(times.last)} #{relative_date(times.first)}"
      
        else
          first = times.first; last = times.last; now = DateAndTime.time_class.now        
          str = prettier_time(first)
          str << ' '
          str << first.strftime_ordinalized('%b %d')
          str << ", #{first.year}" unless first.year == last.year
          str << ' - '
          str << prettier_time(last)
          str << ' '
          str << last.strftime('%b') << ' ' unless first.year == last.year && first.month == last.month
          str << last.day.ordinalize
          str << ", #{last.year}" unless first.year == last.year && last.year == now.year
          str.to_s
        end
      end