compare datetime till second ignore milliseconds

hyrax/app/helpers/hyrax_helper.rb

@@ -164,6 +164,6 @@ module HyraxHelper
     s3.init_client
 
     meta_object = s3.system_metadata_object(work_id)
-    meta_object.present? and (work.date_modified < DateTime.parse(meta_object.last_modified.to_s))
+    meta_object.present? and (work.date_modified.to_i <= DateTime.parse(meta_object.last_modified.to_s).to_i)
   end
 end