diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index e1fd1b646..86c3a837a 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -472,7 +472,7 @@ class DateField(WritableField):
             parsed = parse_date(value)
             if parsed is not None:
                 return parsed
-        except ValueError:
+        except (ValueError, TypeError):
             msg = self.error_messages['invalid_date'] % value
             raise ValidationError(msg)
 
@@ -520,7 +520,7 @@ class DateTimeField(WritableField):
             parsed = parse_datetime(value)
             if parsed is not None:
                 return parsed
-        except ValueError:
+        except (ValueError, TypeError):
             msg = self.error_messages['invalid_datetime'] % value
             raise ValidationError(msg)
 
@@ -528,7 +528,7 @@ class DateTimeField(WritableField):
             parsed = parse_date(value)
             if parsed is not None:
                 return datetime.datetime(parsed.year, parsed.month, parsed.day)
-        except ValueError:
+        except (ValueError, TypeError):
             msg = self.error_messages['invalid_date'] % value
             raise ValidationError(msg)
 
@@ -558,7 +558,7 @@ class TimeField(WritableField):
             parsed = parse_time(value)
             assert parsed is not None
             return parsed
-        except ValueError:
+        except (ValueError, TypeError):
             msg = self.error_messages['invalid'] % value
             raise ValidationError(msg)
 
diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/serializer.py
index da1101386..e85323e0c 100644
--- a/rest_framework/tests/serializer.py
+++ b/rest_framework/tests/serializer.py
@@ -338,6 +338,21 @@ class ValidationTests(TestCase):
         self.assertEquals(serializer.is_valid(), False)
         self.assertEquals(serializer.errors, {'info': ['Ensure this value has at most 12 characters (it has 13).']})
 
+    def test_datetime_validation_failure(self):
+        """
+        Test DateTimeField validation errors on non-str values.
+        Regression test for #669.
+
+        https://github.com/tomchristie/django-rest-framework/issues/669
+        """
+        data = self.data
+        data['created'] = 0
+
+        serializer = CommentSerializer(data=data)
+        self.assertEquals(serializer.is_valid(), False)
+
+        self.assertIn('created', serializer.errors)
+
 
 class CustomValidationTests(TestCase):
     class CommentSerializerWithFieldValidator(CommentSerializer):