lose the reparse parse

lib/pivotal-tracker/story.rb

@@ -135,9 +135,9 @@ def to_xml
             # xml.jira_url "#{jira_url}"
             xml.other_id "#{other_id}" if other_id
             xml.integration_id "#{integration_id}" if integration_id
-            xml.created_at DateTime.parse(created_at.to_s).to_s if created_at
-            xml.accepted_at DateTime.parse(accepted_at.to_s).to_s if accepted_at
-            xml.deadline DateTime.parse(deadline.to_s).to_s if deadline
+            xml.created_at created_at if created_at
+            xml.accepted_at accepted_at if accepted_at
+            xml.deadline deadline if deadline
           }
         end
         return builder.to_xml