Django auto_now_add=True but "received a naive datetime"

user_6367473 0
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I have a model field as follows with a timezone aware auto add:

start_date = models.DateTimeField(auto_now_add=True, blank=True)

However I still get a RuntimeWarning when running tests:

RuntimeWarning: DateTimeField Survey.start_date received a naive datetime (2020-07-16 03:15:14.463640) while time zone support is active.

I get the same when I have:

start_date = models.DateTimeField(default=timezone.now, blank=True)

Any thoughts?

django-models django
2 Answers

This also can be caused by any case where you have custom model manager filtering any date fields on datetime.today() rather than timezone.now().

user_126786100

Your second option should be alright. But you should remove blank=True, since by providing a default would mean you could send a request without this field. 

start_date = models.DateTimeField(default=timezone.now)

Make sure you have run python manage.py makemigrations and python manage.py migrate after you made the change.

user_99118380
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