# File lib/ri_cal/property_value/date_time.rb, line 119
      def self.time_and_parameters(object)
        parameters = {}
        if ::String === object
          object, parameters = self.time_and_parameters_from_string(object)
        else
          identifier = object.tzid rescue nil
          parameters["TZID"] = identifier if identifier
        end
        [object, parameters]
      end