diff --git a/lib/ransack/adapters/mongoid/attributes/attribute.rb b/lib/ransack/adapters/mongoid/attributes/attribute.rb
index 3d7530f..5100b1c 100644
--- a/lib/ransack/adapters/mongoid/attributes/attribute.rb
+++ b/lib/ransack/adapters/mongoid/attributes/attribute.rb
@@ -1,3 +1,5 @@
+require 'ransack/adapters/mongoid/attributes/predications'
+
 module Ransack
   module Adapters
     module Mongoid
@@ -9,44 +11,14 @@ module Ransack
           # include Arel::OrderPredications
           # include Arel::Math
 
+          include ::Ransack::Adapters::Mongoid::Attributes::Predications
+
           ###
           # Create a node for lowering this attribute
           def lower
             relation.lower self
           end
 
-          def eq(other)
-            { name => other }.to_inquiry
-          end
-
-          def not_eq(other)
-            { name.to_sym.ne => other }.to_inquiry
-          end
-
-          def matches(other)
-            { name => /#{Regexp.escape(other)}/i }.to_inquiry
-          end
-
-          def does_not_match(other)
-            { "$not" => { name => /#{Regexp.escape(other)}/i } }.to_inquiry
-          end
-
-          def not_eq_all(other)
-            q = []
-            other.each do |value|
-              q << { name.to_sym.ne => value }
-            end
-            { "$and" => q }.to_inquiry
-          end
-
-          def eq_any(other)
-            q = []
-            other.each do |value|
-              q << { name => value }
-            end
-            { "$or" => q }.to_inquiry
-          end
-
           def asc
             { name => :asc }
           end
diff --git a/lib/ransack/adapters/mongoid/attributes/predications.rb b/lib/ransack/adapters/mongoid/attributes/predications.rb
new file mode 100644
index 0000000..cfb6563
--- /dev/null
+++ b/lib/ransack/adapters/mongoid/attributes/predications.rb
@@ -0,0 +1,102 @@
+module Ransack
+  module Adapters
+    module Mongoid
+      module Attributes
+        module Predications
+
+          def eq(other)
+            { name => other }.to_inquiry
+          end
+
+          def not_eq(other)
+            { name => { '$ne' => other } }.to_inquiry
+          end
+
+          def matches(other)
+            { name => /#{Regexp.escape(other)}/i }.to_inquiry
+          end
+
+          def does_not_match(other)
+            { "$not" => { name => /#{Regexp.escape(other)}/i } }.to_inquiry
+          end
+
+          def eq_all(others)
+            grouping_all :eq, others
+          end
+
+          def not_eq_all(others)
+            grouping_all :not_eq, others
+          end
+
+          def eq_any(others)
+            grouping_any :eq, others
+          end
+
+          def not_eq_any(others)
+            grouping_any :not_eq, others
+          end
+
+          def gteq right
+            { name => { '$gte' => right } }.to_inquiry
+          end
+
+          def gteq_any others
+            grouping_any :gteq, others
+          end
+
+          def gteq_all others
+            grouping_all :gteq, others
+          end
+
+          def gt right
+            { name => { '$gt' => right } }
+          end
+
+          def gt_any others
+            grouping_any :gt, others
+          end
+
+          def gt_all others
+            grouping_all :gt, others
+          end
+
+          def lt right
+            { name => { '$lt' => right } }
+          end
+
+          def lt_any others
+            grouping_any :lt, others
+          end
+
+          def lt_all others
+            grouping_all :lt, others
+          end
+
+          def lteq right
+            { name => { '$lte' => right } }.to_inquiry
+          end
+
+          def lteq_any others
+            grouping_any :lteq, others
+          end
+
+          def lteq_all others
+            grouping_all :lteq, others
+          end
+
+          private
+
+          def grouping_any method_id, others
+            nodes = others.map { |e| send(method_id, e) }
+            { "$or" => nodes }.to_inquiry
+          end
+
+          def grouping_all method_id, others
+            nodes = others.map { |e| send(method_id, e) }
+            { "$and" => nodes }.to_inquiry
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/mongoid/predicate_spec.rb b/spec/mongoid/predicate_spec.rb
index 4e6ec52..ad5ea48 100644
--- a/spec/mongoid/predicate_spec.rb
+++ b/spec/mongoid/predicate_spec.rb
@@ -37,7 +37,6 @@ module Ransack
     end
 
     describe 'cont' do
-
       it_has_behavior 'wildcard escaping', :name_cont, { 'name' => /%\._\\/i } do
         subject { @s }
       end
@@ -106,5 +105,37 @@ module Ransack
         expect(@s.result.selector).to eq({ '$and' => [ { 'name' => { '$ne' => nil}}, { 'name' => { '$ne' => '' }} ] })
       end
     end
+
+    describe 'gt' do
+      it 'generates an greater than for time' do
+        time = Time.now
+        @s.created_at_gt = time
+        expect(@s.result.selector).to eq({ "created_at" => { '$gt' => time } })
+      end
+    end
+
+    describe 'lt' do
+      it 'generates an greater than for time' do
+        time = Time.now
+        @s.created_at_lt = time
+        expect(@s.result.selector).to eq({ "created_at" => { '$lt' => time } })
+      end
+    end
+
+    describe 'gteq' do
+      it 'generates an greater than for time' do
+        time = Time.now
+        @s.created_at_gteq = time
+        expect(@s.result.selector).to eq({ "created_at" => { '$gte' => time } })
+      end
+    end
+
+    describe 'lteq' do
+      it 'generates an greater than for time' do
+        time = Time.now
+        @s.created_at_lteq = time
+        expect(@s.result.selector).to eq({ "created_at" => { '$lte' => time } })
+      end
+    end
   end
 end