Index: appengine_django/serializer/python.py
===================================================================
--- appengine_django/serializer/python.py	(revision 19)
+++ appengine_django/serializer/python.py	(working copy)
@@ -22,6 +22,8 @@
 entity and also recreate the keys for any references appropriately.
 """
 
+import datetime
+import time
 
 from django.conf import settings
 from django.core.serializers import base
@@ -34,7 +36,6 @@
 try:
   from django.utils.encoding import smart_unicode
 except ImportError:
-  import datetime
   import types
   from django.utils.functional import Promise
 
@@ -75,7 +76,10 @@
 
 Serializer = python.Serializer
 
+DATE_FORMAT = "%Y-%m-%d"
+TIME_FORMAT = "%H:%M:%S"
 
+
 class FakeParent(object):
   """Fake parent 'model' like object.
 
@@ -121,8 +125,18 @@
         if not data[field.name].name():
           raise base.DeserializationError(u"Cannot load Reference with "
                                           "unnamed key: '%s'" % field_value)
-      else:
-        data[field.name] = field.validate(field_value)
+        continue
+
+      if isinstance(field, db.DateTimeProperty):
+        try:
+          t = time.strptime(field_value, "%s %s"% (DATE_FORMAT, TIME_FORMAT))
+          d = datetime.datetime(*(t)[0:6])
+          field_value = d
+        except (ValueError, TypeError), e:
+          # Pass it on anyway, and hope the model can deal with it.
+          pass
+
+      data[field.name] = field.validate(field_value)
     # Create the new model instance with all it's data, but no parent.
     object = Model(**data)
     # Now add the parent into the hidden attribute, bypassing the type checks