diff --git a/lib/noosfero/api/helpers.rb b/lib/noosfero/api/helpers.rb
index 8dce8a4..5f2a020 100644
--- a/lib/noosfero/api/helpers.rb
+++ b/lib/noosfero/api/helpers.rb
@@ -243,6 +243,16 @@ require_relative '../../find_by_contents'
         end
       end
 
+      def by_period(scope, params, attribute)
+        from_param = "from_#{attribute}".to_sym
+        until_param = "until_#{attribute}".to_sym
+        from_date = DateTime.parse(params.delete(from_param)) if params[from_param]
+        until_date = DateTime.parse(params.delete(until_param)) if params[until_param]
+        scope = scope.where("#{attribute} >= ?", from_date) unless from_date.nil?
+        scope = scope.where("#{attribute} <= ?", until_date) unless until_date.nil?
+        scope
+      end
+
       def select_filtered_collection_of(object, method, params)
         conditions = make_conditions_with_parameter(params)
         order = make_order_with_parameters(object,method,params)
@@ -251,6 +261,7 @@ require_relative '../../find_by_contents'
         objects = object.send(method)
         objects = by_reference(objects, params)
         objects = by_categories(objects, params)
+        [:start_date, :end_date].each { |attribute| objects = by_period(objects, params, attribute) }
 
         objects = objects.where(conditions).where(timestamp).reorder(order)
 
diff --git a/test/api/articles_test.rb b/test/api/articles_test.rb
index a7947e6..f27ff0a 100644
--- a/test/api/articles_test.rb
+++ b/test/api/articles_test.rb
@@ -744,4 +744,24 @@ class ArticlesTest < ActiveSupport::TestCase
     assert_not_includes json['article']['children'].map {|a| a['id']}, child.id
   end
 
+  should 'list events with period for start date' do
+    Article.destroy_all
+    article1 = fast_create(Event, profile_id: user.person.id, start_date: Time.now)
+    article2 = fast_create(Event, profile_id: user.person.id, start_date: Time.now + 2.day)
+    params[:until_start_date] = Time.now + 1.day
+    get "/api/v1/articles/?#{params.to_query}"
+    json = JSON.parse(last_response.body)
+    assert_equal json["articles"].map { |a| a["id"] }, [article1.id]
+  end
+
+  should 'list events with period for end date' do
+    Article.destroy_all
+    article1 = fast_create(Event, profile_id: user.person.id, end_date: Time.now)
+    article2 = fast_create(Event, profile_id: user.person.id, end_date: Time.now + 2.day)
+    params[:from_end_date] = Time.now + 1.day
+    get "/api/v1/articles/?#{params.to_query}"
+    json = JSON.parse(last_response.body)
+    assert_equal json["articles"].map { |a| a["id"] }, [article2.id]
+  end
+
 end
--
libgit2 0.21.2