This is the form:
from django.forms.extras.widgets import SelectDateWidget
class EntryForm(forms.ModelForm):
class Meta():
model = Entry
If you look in django/forms/extras/widgets.py
where SelectDateWidget is defined the render function contains this snippet of code.
90 output = []
91 for field in _parse_date_fmt():
92 if field == 'year':
93 output.append(year_html)
94 elif field == 'month':
95 output.append(month_html)
96 elif field == 'day':
97 output.append(day_html)
98 return mark_safe(u'\n'.join(output))
_parse_date_fmt
uses get_format('DATE_FORMAT')
It looks like DATE_FORMAT
can be set in the settings.py
https://docs.djangoproject.com/en/dev/ref/settings/#date-format