diff -r 6ca775e44505 -r 658842861161 ztfy/utils/timezone/utility.py
--- a/ztfy/utils/timezone/utility.py	Mon Nov 07 12:38:27 2011 +0100
+++ b/ztfy/utils/timezone/utility.py	Mon Nov 07 13:02:19 2011 +0100
@@ -21,10 +21,10 @@
 # import Zope3 interfaces
 
 # import local interfaces
-from interfaces import IServerTimezone
+from ztfy.utils.timezone.interfaces import IServerTimezone
 
 # import Zope3 packages
-from zope.app.container.contained import Contained
+from zope.container.contained import Contained
 from zope.interface import implements
 from zope.schema.fieldproperty import FieldProperty