DATE_INPUT_FORMATS is not working

[Alex]

Per the Django Docs, in settings.py if I set USE_L10N to false, I should be able to override the supported date formats. My settings.py has the following:

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = False

USE_L10N = False

USE_TZ = False

DATE_INPUT_FORMATS = [
    '%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y', # '2006-10-25', '10/25/2006', '10/25/06'
    '%b %d %Y', '%b %d, %Y',            # 'Oct 25 2006', 'Oct 25, 2006'
    '%d %b %Y', '%d %b, %Y',            # '25 Oct 2006', '25 Oct, 2006'
    '%B %d %Y', '%B %d, %Y',            # 'October 25 2006', 'October 25, 2006'
    '%d %B %Y', '%d %B, %Y',            # '25 October 2006', '25 October, 2006'
]

I have a model that looks like the following:

class DateTest(models.Model):
    date = models.DateField(blank=True, null=True)

When I run the following command, i get an error:

>>> DateTest.objects.create(date='09/01/2016')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/query.py", line 399, in create
    obj.save(force_insert=True, using=self.db)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/base.py", line 796, in save
    force_update=force_update, update_fields=update_fields)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/base.py", line 824, in save_base
    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/base.py", line 908, in _save_table
    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/base.py", line 947, in _do_insert
    using=using, raw=raw)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/query.py", line 1045, in _insert
    return query.get_compiler(using=using).execute_sql(return_id)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1053, in execute_sql
    for sql, params in self.as_sql():
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1006, in as_sql
    for obj in self.query.objs
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1006, in <listcomp>
    for obj in self.query.objs
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 1005, in <listcomp>
    [self.prepare_value(field, self.pre_save_val(field, obj)) for field in fields]
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/sql/compiler.py", line 945, in prepare_value
    value = field.get_db_prep_save(value, connection=self.connection)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 755, in get_db_prep_save
    prepared=False)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 1280, in get_db_prep_value
    value = self.get_prep_value(value)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 1275, in get_prep_value
    return self.to_python(value)
  File "/Users/abeach/Workspace/orchard/env/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 1250, in to_python
    params={'value': value},
django.core.exceptions.ValidationError: ["'09/01/2016' value has an invalid date format. It must be in YYYY-MM-DD format."]

[Tim Graham]

My understanding is that only form fields (rather than model fields) handle those formats (e.g. ​DateField).