Index: app/models/page.rb
===================================================================
--- app/models/page.rb	(revision 178)
+++ app/models/page.rb	(working copy)
@@ -79,7 +79,13 @@
   private
   
     def update_published_at
-      write_attribute('published_at', Time.now) if (status_id.to_i == Status[:published].id) and published_at.nil?
+      if (status_id.to_i == Status[:published].id) and published_at.nil?
+        t = Time.now
+        if ActiveRecord::Base.default_timezone == :utc
+          t.utc
+        end
+        write_attribute('published_at', t) 
+      end
       true
     end
   
@@ -88,4 +94,4 @@
       true
     end
   
-end
\ No newline at end of file
+end
Index: test/unit/page_test.rb
===================================================================
--- test/unit/page_test.rb	(revision 178)
+++ test/unit/page_test.rb	(working copy)
@@ -104,7 +104,11 @@
     @page.status_id = status(:published).id
     @page.save
     assert_not_nil @page.published_at
-    assert_equal Time.now.day, @page.published_at.day
+    t = Time.now
+    if ActiveRecord::Base.default_timezone == :utc
+      t.utc
+    end
+    assert_equal t.day, @page.published_at.day
   end
   
   def test_published_at__not_updated_on_save_because_already_published