diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 589ae8a365..af853f5f15 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Time.=== returns true for TimeWithZone instances [Geoff Buesing]
+
 * TimeWithZone #+ and #- behave consistently with numeric arguments regardless of whether wrapped time is a Time or DateTime; consistenty answers false to #acts_like?(:date) [Geoff Buesing]
 
 * Add String#squish and String#squish! to remove consecutive chunks of whitespace.  #11123 [jordi, Henrik N]
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 7fbfca5b2a..ad260f809b 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -24,6 +24,11 @@ module ActiveSupport #:nodoc:
         COMMON_YEAR_DAYS_IN_MONTH = [nil, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
 
         module ClassMethods
+          # Overriding case equality method so that it returns true for ActiveSupport::TimeWithZone instances
+          def ===(other)
+            other.is_a?(::Time)
+          end
+          
           # Return the number of days in the given month. 
           # If no year is specified, it will use the current year. 
           def days_in_month(month, year = now.year)
diff --git a/activesupport/test/core_ext/time_ext_test.rb b/activesupport/test/core_ext/time_ext_test.rb
index 40e8c5ecfd..d4a555d55e 100644
--- a/activesupport/test/core_ext/time_ext_test.rb
+++ b/activesupport/test/core_ext/time_ext_test.rb
@@ -468,6 +468,12 @@ class TimeExtCalculationsTest < Test::Unit::TestCase
     end
   end
 
+  def test_case_equality
+    assert Time === Time.utc(2000)
+    assert Time === ActiveSupport::TimeWithZone.new(Time.utc(2000), TimeZone['UTC'])
+    assert_equal false, Time === DateTime.civil(2000)
+  end
+
   protected
     def with_env_tz(new_tz = 'US/Eastern')
       old_tz, ENV['TZ'] = ENV['TZ'], new_tz