# File lib/active_support/core_ext/time/calculations.rb, line 99
        def since(seconds)
          f = seconds.since(self)
          if ActiveSupport::Duration === seconds
            f
          else
            initial_dst = self.dst? ? 1 : 0
            final_dst   = f.dst? ? 1 : 0
            (seconds.abs >= 86400 && initial_dst != final_dst) ? f + (initial_dst - final_dst).hours : f
          end
        rescue
          self.to_datetime.since(seconds)          
        end