Django 1.11 - Best Datepicker to use?

[Jack Zhang]

I'm looking for a datepicker widget to use for a DateTime form field.  I searched around and most of the answers were old Stack Overflow posts from 2011 about hacking the calendar datepicker widget from Django's Admin.  The information about that was inconclusive and I couldn't get mine to work.

As of right now, what is the best Datepicker I can use for a DateTime form field?  It doesn't have to be Django's Admin, or anything fancy.  It just has to be perfectly functional.