diff --git a/app/controllers/e_papers_controller.rb b/app/controllers/e_papers_controller.rb
index a11d8c4..dd82d52 100644
--- a/app/controllers/e_papers_controller.rb
+++ b/app/controllers/e_papers_controller.rb
@@ -16,7 +16,7 @@ class EPapersController < ApplicationController
 					
 					"episode" => topic.episode,
 					"content" => topic.content,
-					"publish_date" => topic.created_at.strftime('%Y-%m-%d')
+					"publish_date" => topic.created_at
 				}
 			end
 	
@@ -57,7 +57,7 @@ class EPapersController < ApplicationController
 					"episode" => topic.episode,
 					"content" => topic.content,
 					"description" => desc[0..100],
-					"publish_date" => topic.created_at.strftime("%Y-%m-%d")
+					"publish_date" => topic.created_at
 				}
 		  end
 		{
@@ -66,7 +66,7 @@ class EPapersController < ApplicationController
 				"period" => paper.period,
 				"description" => paper.description,
 				"category" => paper.category.title,
-				"publish_date" => paper.created_at.strftime("%Y-%m-%d"),
+				"publish_date" => paper.created_at,
 				"th_title" => t('e_paper.title'),
 				"th_category" => t('category'),
 				"th_period" => t('e_paper.period'),