Fix test. According to http://en.wikipedia.org/wiki/ISO_8601

If no time zone information is given with a time, the time zone is assumed to be in some conventional local time zone.

lib/python/DateTime/tests/testDateTime.py

@@ -265,7 +265,7 @@ class DateTimeTests(unittest.TestCase):
         ref1 = DateTime('2002/5/2 8:00am US/Eastern')
         ref2 = DateTime('2006/11/6 10:30 UTC')
         ref3 = DateTime('2004/06/14 14:30:15 GMT-3')
-        ref4 = DateTime('2006/01/01 UTC')
+        ref4 = DateTime('2006/01/01')
         ref5 = DateTime('2002/5/2 8:00am GMT')
 
         # Basic tests