diff --git a/common/djangoapps/student/tests/factories.py b/common/djangoapps/student/tests/factories.py
index d73bb6f01d..49864fcbd4 100644
--- a/common/djangoapps/student/tests/factories.py
+++ b/common/djangoapps/student/tests/factories.py
@@ -5,6 +5,7 @@ from django.contrib.auth.models import Group
 from datetime import datetime
 from factory import DjangoModelFactory, SubFactory, PostGenerationMethodCall, post_generation, Sequence
 from uuid import uuid4
+from pytz import UTC
 
 # Factories don't have __init__ methods, and are self documenting
 # pylint: disable=W0232
@@ -46,8 +47,8 @@ class UserFactory(DjangoModelFactory):
     is_staff = False
     is_active = True
     is_superuser = False
-    last_login = datetime(2012, 1, 1)
-    date_joined = datetime(2011, 1, 1)
+    last_login = datetime(2012, 1, 1, tzinfo=UTC)
+    date_joined = datetime(2011, 1, 1, tzinfo=UTC)
 
     @post_generation
     def profile(obj, create, extracted, **kwargs):
diff --git a/lms/djangoapps/courseware/tests/test_views.py b/lms/djangoapps/courseware/tests/test_views.py
index 1d3166893e..25492ad379 100644
--- a/lms/djangoapps/courseware/tests/test_views.py
+++ b/lms/djangoapps/courseware/tests/test_views.py
@@ -13,6 +13,7 @@ from xmodule.modulestore.django import modulestore
 
 import courseware.views as views
 from xmodule.modulestore import Location
+from pytz import UTC
 
 
 class Stub():
@@ -63,7 +64,7 @@ class ViewsTestCase(TestCase):
     def setUp(self):
         self.user = User.objects.create(username='dummy', password='123456',
                                         email='test@mit.edu')
-        self.date = datetime.datetime(2013, 1, 22)
+        self.date = datetime.datetime(2013, 1, 22, tzinfo=UTC)
         self.course_id = 'edX/toy/2012_Fall'
         self.enrollment = CourseEnrollment.objects.get_or_create(user=self.user,
                                                   course_id=self.course_id,