diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 3559f715d5..cf8b935be1 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Add :rfc822 as an option for Time#to_s (to get rfc822-formatted times)
+
 * Chain the const_missing hook to any previously existing hook so rails can play nicely with rake
 
 * Clean logger is compatible with both 1.8.2 and 1.8.3 Logger.  #2263 [Michael Schuerig <michael@schuerig.de>]
diff --git a/activesupport/lib/active_support/core_ext/time/conversions.rb b/activesupport/lib/active_support/core_ext/time/conversions.rb
index fadfb6b0df..6e7299762d 100644
--- a/activesupport/lib/active_support/core_ext/time/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/time/conversions.rb
@@ -6,9 +6,10 @@ module ActiveSupport #:nodoc:
       # Getting times in different convenient string representations and other objects
       module Conversions
         DATE_FORMATS = {
-          :db    => "%Y-%m-%d %H:%M:%S",
-          :short => "%e %b %H:%M",
-          :long  => "%B %e, %Y %H:%M"
+          :db     => "%Y-%m-%d %H:%M:%S",
+          :short  => "%e %b %H:%M",
+          :long   => "%B %e, %Y %H:%M",
+          :rfc822 => "%a, %d %b %Y %H:%M:%S %z"
         }
 
         def self.append_features(klass)
@@ -32,4 +33,4 @@ module ActiveSupport #:nodoc:
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/activesupport/test/core_ext/time_ext_test.rb b/activesupport/test/core_ext/time_ext_test.rb
index 60649e4c76..86f8b7e4f6 100644
--- a/activesupport/test/core_ext/time_ext_test.rb
+++ b/activesupport/test/core_ext/time_ext_test.rb
@@ -118,9 +118,13 @@ class TimeExtCalculationsTest < Test::Unit::TestCase
   end
 
   def test_to_s
-    assert_equal "2005-02-21 17:44:30",     Time.local(2005, 2, 21, 17, 44, 30).to_s(:db)
-    assert_equal "21 Feb 17:44",            Time.local(2005, 2, 21, 17, 44, 30).to_s(:short)
-    assert_equal "February 21, 2005 17:44", Time.local(2005, 2, 21, 17, 44, 30).to_s(:long)
+    time = Time.local(2005, 2, 21, 17, 44, 30)
+    assert_equal "2005-02-21 17:44:30",     time.to_s(:db)
+    assert_equal "21 Feb 17:44",            time.to_s(:short)
+    assert_equal "February 21, 2005 17:44", time.to_s(:long)
+
+    time = Time.utc(2005, 2, 21, 17, 44, 30)
+    assert_equal "Mon, 21 Feb 2005 17:44:30 +0000", time.to_s(:rfc822)
   end
   
   def test_to_date