code: def start_time_zone!(zone)
        attributes = {}
        attributes['Id'] = zone[:id] if zone[:id]
        attributes['Name'] = zone[:name] if zone[:name]
        nbuild[NS_EWS_TYPES].StartTimeZone(attributes)
      end
docs: Specifies an optional time zone for the start time
   @param [Hash] attributes
   @option attributes :id [String] ID of the Microsoft well known time zone
   @option attributes :name [String] Optional name of the time zone
   @todo Implement sub elements Periods, TransitionsGroups and Transitions to override zone
   @see http://msdn.microsoft.com/en-us/library/exchange/dd899524.aspx