diff --git a/app/controllers/announcement_feeds_controller.rb b/app/controllers/announcement_feeds_controller.rb
index fa2b0d9..9e84f9c 100644
--- a/app/controllers/announcement_feeds_controller.rb
+++ b/app/controllers/announcement_feeds_controller.rb
@@ -7,7 +7,7 @@ class AnnouncementFeedsController < ApplicationController
 	    enddt = params[:end].blank? ? nil : params[:end]
 	    dt = params[:date].blank? ? nil : params[:date]
 		feed_cache = BulletinFeedCache.where(uid: uid, start: startdt, end: enddt, date: dt)
-		feed_cache.all_of({:invalid_date.ne=>nil,:invalid_date.lte => Time.now}).destroy
+		feed_cache.all_of([{:invalid_date.ne=>nil},{:invalid_date.lte => Time.now}]).destroy
 		count = feed_cache.count
 	    if count > 1
 	      feed_cache.limit(count-1).destroy
diff --git a/app/controllers/announcements_controller.rb b/app/controllers/announcements_controller.rb
index 3104ef7..8da40ad 100644
--- a/app/controllers/announcements_controller.rb
+++ b/app/controllers/announcements_controller.rb
@@ -505,7 +505,7 @@ class AnnouncementsController < ApplicationController
     widget_data_count = OrbitHelper.widget_data_count
     anns_cache = AnnsCache.where(parent_id: subpart.id.to_s + cats.to_s + tags.to_s + widget_data_count.to_s,locale: I18n.locale.to_s)
     devide_flag = (!(defined? SiteFeed).nil?)
-    anns_cache.all_of({:invalid_date.ne=>nil,:invalid_date.lte => Time.now}).destroy
+    anns_cache.all_of([{:invalid_date.ne=>nil},{:invalid_date.lte => Time.now}]).destroy
     count = anns_cache.count
     if count > 1
       anns_cache.limit(count-1).destroy
@@ -531,6 +531,7 @@ class AnnouncementsController < ApplicationController
           AnnsCache.create(parent_id: subpart.id.to_s + cats.to_s + tags.to_s + widget_data_count.to_s,locale: I18n.locale.to_s,filter_result: anns,invalid_date: invalid_date)
         end
       else
+        invalid_date = Time.now + 3.second
         if devide_flag
           anns = sorted_anns.sample(widget_data_count)
           top_anns = anns.select{|v| v.is_top}.map{|v| data_to_human_type(v,set_tags)}
@@ -540,11 +541,20 @@ class AnnouncementsController < ApplicationController
         end
       end
     elsif devide_flag
-      now_anns = anns_cache.first.filter_result
+      c = anns_cache.first
+      now_anns = c.filter_result
+      invalid_date = c.invalid_date
       top_anns = now_anns[:top]
       not_top_anns = now_anns[:not_top]
     else
-      anns = anns_cache.first.filter_result
+      c = anns_cache.first
+      invalid_date = c.invalid_date
+      anns = c.filter_result
+    end
+    if @page_invalid_time.nil?
+      @page_invalid_time = invalid_date
+    elsif !invalid_date.nil? && @page_invalid_time>invalid_date
+      @page_invalid_time = invalid_date
     end
     if devide_flag
       feeds_anns = get_feed_announcements("widget",nil,cats,widget_data_count - top_anns.count)