diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 6cbef65ae5..6d930c773b 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Adding TimeWithZone #to_a, #to_f, #to_i, #httpdate, #rfc2822 [Geoff Buesing]
+
 * Pruning unneeded TimeWithZone#change_time_zone_to_current [Geoff Buesing]
 
 * Time#zone=, #in_time_zone and #change_time_zone accept a Duration [Geoff Buesing]
diff --git a/activesupport/lib/active_support/time_with_zone.rb b/activesupport/lib/active_support/time_with_zone.rb
index 6b9fed4b8f..517b2bac7f 100644
--- a/activesupport/lib/active_support/time_with_zone.rb
+++ b/activesupport/lib/active_support/time_with_zone.rb
@@ -44,7 +44,7 @@ module ActiveSupport
   
     # Returns a Time.local() instance of the simultaneous time in your system's ENV['TZ'] zone
     def localtime
-      utc.dup.localtime # use #dup because Time#localtime is destructive
+      utc.getlocal
     end
   
     def dst?
@@ -79,6 +79,15 @@ module ActiveSupport
     def to_json(options = nil)
       %("#{time.strftime("%Y/%m/%d %H:%M:%S")} #{formatted_offset(false)}")
     end
+    
+    def httpdate
+      utc.httpdate
+    end
+  
+    def rfc2822
+      to_s(:rfc822)
+    end
+    alias_method :rfc822, :rfc2822
   
     # :db format outputs time in UTC; all others output time in local. Uses TimeWithZone's strftime, so %Z and %z work correctly
     def to_s(format = :default) 
@@ -107,6 +116,18 @@ module ActiveSupport
     def -(other)
       other.acts_like?(:time) ? utc - other : method_missing(:-, other)
     end
+    
+    def to_a
+      time.to_a[0, 8].push(dst?, zone)
+    end
+    
+    def to_f
+      utc.to_f
+    end    
+    
+    def to_i
+      utc.to_i
+    end
   
     # A TimeProxy acts like a Time, so just return self
     def to_time
diff --git a/activesupport/test/core_ext/time_with_zone_test.rb b/activesupport/test/core_ext/time_with_zone_test.rb
index cc7a55b2ee..13ebfa644c 100644
--- a/activesupport/test/core_ext/time_with_zone_test.rb
+++ b/activesupport/test/core_ext/time_with_zone_test.rb
@@ -82,6 +82,14 @@ uses_tzinfo 'TimeWithZoneTest' do
       assert_equal "1999-12-31T19:00:00-05:00", @twz.xmlschema
     end
     
+    def test_httpdate
+      assert_equal 'Sat, 01 Jan 2000 00:00:00 GMT', @twz.httpdate
+    end
+    
+    def test_rfc2822
+      assert_equal "Fri, 31 Dec 1999 19:00:00 -0500", @twz.rfc2822
+    end
+    
     def test_compare_with_time
       assert_equal  1, @twz <=> Time.utc(1999, 12, 31, 23, 59, 59)
       assert_equal  0, @twz <=> Time.utc(2000, 1, 1, 0, 0, 0)
@@ -126,6 +134,22 @@ uses_tzinfo 'TimeWithZoneTest' do
       twz2 = ActiveSupport::TimeWithZone.new( Time.utc(2000, 1, 2), TimeZone['UTC'] )
       assert_equal  86_400.0,  twz2 - twz1
     end
+    
+    def test_to_a
+      assert_equal [45, 30, 5, 1, 2, 2000, 2, 32, false, "HST"], ActiveSupport::TimeWithZone.new( Time.utc(2000, 2, 1, 15, 30, 45), TimeZone['Hawaii'] ).to_a
+    end
+    
+    def test_to_f
+      result = ActiveSupport::TimeWithZone.new( Time.utc(2000, 1, 1), TimeZone['Hawaii'] ).to_f
+      assert_equal 946684800.0, result
+      assert result.is_a?(Float)
+    end
+    
+    def test_to_i
+      result = ActiveSupport::TimeWithZone.new( Time.utc(2000, 1, 1), TimeZone['Hawaii'] ).to_i
+      assert_equal 946684800, result
+      assert result.is_a?(Integer)
+    end
       
     def test_to_time
       assert_equal @twz, @twz.to_time