diff --git a/lib/validates_timeliness/spec/rails/matchers/validate_timeliness.rb b/lib/validates_timeliness/spec/rails/matchers/validate_timeliness.rb
index 6587415..fbc0282 100644
--- a/lib/validates_timeliness/spec/rails/matchers/validate_timeliness.rb
+++ b/lib/validates_timeliness/spec/rails/matchers/validate_timeliness.rb
@@ -10,6 +10,7 @@ module Spec
         }
 
         OPTION_TEST_SETTINGS = {
+          :equal_to     => { :method => :+, :modify_on => :invalid },
           :before       => { :method => :-, :modify_on => :valid },
           :after        => { :method => :+, :modify_on => :valid },
           :on_or_before => { :method => :+, :modify_on => :invalid },
@@ -27,9 +28,9 @@ module Spec
           
           valid = test_validity
 
+          valid = test_option(:equal_to) if @options[:equal_to] && valid
           valid = test_option(:before) if @options[:before] && valid
           valid = test_option(:after) if @options[:after] && valid
-          
           valid = test_option(:on_or_before) if @options[:on_or_before] && valid
           valid = test_option(:on_or_after) if @options[:on_or_after] && valid
 
diff --git a/spec/spec/rails/matchers/validate_timeliness_spec.rb b/spec/spec/rails/matchers/validate_timeliness_spec.rb
index 7164ec0..fa80e4a 100644
--- a/spec/spec/rails/matchers/validate_timeliness_spec.rb
+++ b/spec/spec/rails/matchers/validate_timeliness_spec.rb
@@ -5,6 +5,7 @@ end
 
 class WithValidation < Person
   validates_date :birth_date, 
+    :equal_to     => '2000-01-01',
     :before       => '2000-01-10',
     :after        => '2000-01-01',
     :on_or_before => '2000-01-09',
@@ -12,6 +13,7 @@ class WithValidation < Person
     :between      => ['2000-01-01', '2000-01-03']
 
   validates_time :birth_time, 
+    :equal_to     => '09:00',
     :before       => '23:00',
     :after        => '09:00',
     :on_or_before => '22:00',
@@ -19,6 +21,7 @@ class WithValidation < Person
     :between      => ['09:00', '17:00']
 
   validates_datetime :birth_date_and_time, 
+    :equal_to     => '2000-01-01 09:00',
     :before       => '2000-01-10 23:00',
     :after        => '2000-01-01 09:00',
     :on_or_before => '2000-01-09 23:00',
@@ -61,6 +64,29 @@ describe "ValidateTimeliness matcher" do
     end    
   end
    
+  describe "with equal_to option" do
+    test_values = {
+      :date     => ['2000-01-01', '2000-01-02'],
+      :time     => ['09:00', '09:01'],
+      :datetime => ['2000-01-01 09:00', '2000-01-01 09:01']
+    }
+    
+    [:date, :time, :datetime].each do |type|
+
+      it "should report that #{type} is validated" do
+        with_validation.should self.send("validate_#{type}", attribute_for_type(type), :equal_to => test_values[type][0])
+      end
+      
+      it "should report that #{type} is not validated when option value is incorrect" do
+        with_validation.should_not self.send("validate_#{type}", attribute_for_type(type), :equal_to => test_values[type][1])
+      end
+      
+      it "should report that #{type} is not validated with option" do
+        no_validation.should_not self.send("validate_#{type}", attribute_for_type(type), :equal_to => test_values[type][0])
+      end
+    end
+  end
+
   describe "with before option" do
     test_values = {
       :date     => ['2000-01-10', '2000-01-11'],