diff --git a/activesupport/CHANGELOG b/activesupport/CHANGELOG
index 6250f33998..7e408840c4 100644
--- a/activesupport/CHANGELOG
+++ b/activesupport/CHANGELOG
@@ -1,3 +1,5 @@
+* TimeZone#to_s shows offset as GMT instead of UTC, because GMT will be more familiar to end users (see time zone selects used by Windows OS, google.com and yahoo.com.) Reverts [8370] [Geoff Buesing]
+
 * Hash.from_xml: datetime xml types overflow to Ruby DateTime class when out of range of Time. Adding tests for utc offsets [Geoff Buesing]
 
 * TimeWithZone #+ and #- : ensure overflow to DateTime with Numeric arg [Geoff Buesing]
diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb
index 4d7239d8cf..a71c819fba 100644
--- a/activesupport/lib/active_support/values/time_zone.rb
+++ b/activesupport/lib/active_support/values/time_zone.rb
@@ -202,7 +202,7 @@ class TimeZone
 
   # Returns a textual representation of this time zone.
   def to_s
-    "(UTC#{formatted_offset}) #{name}"
+    "(GMT#{formatted_offset}) #{name}"
   end
 
   # Method for creating new ActiveSupport::TimeWithZone instance in time zone of +self+ from given values. Example:
diff --git a/activesupport/test/time_zone_test.rb b/activesupport/test/time_zone_test.rb
index 3757ddcedb..f3069b589b 100644
--- a/activesupport/test/time_zone_test.rb
+++ b/activesupport/test/time_zone_test.rb
@@ -252,7 +252,7 @@ class TimeZoneTest < Test::Unit::TestCase
   end
   
   def test_to_s
-    assert_equal "(UTC+03:00) Moscow", TimeZone['Moscow'].to_s
+    assert_equal "(GMT+03:00) Moscow", TimeZone['Moscow'].to_s
   end
   
   def test_all_sorted