Another `celery.utils.time` fix (#518)
Another `celery.utils.time` fix (#518)

For bug #496
To go along with this: https://github.com/celery/django-celery/pull/516/commits/12b7646f455527d2bef51508c105137a02832cae
and this: https://github.com/celery/django-celery/pull/510
celery/django-celery,celery/django-celery,celery/django-celery