Ticket #19431: modelform_qs_initial_datetime.patch

django/contrib/admin/options.py

@@ -1 +1 @@
 from functools import update_wrapper, partial
 import warnings
 
+import dateutil.parser
+
 from django import forms
 from django.conf import settings
 from django.forms.formsets import all_valid
@@ -1055 +1057 @@
                     continue
                 if isinstance(f, models.ManyToManyField):
                     initial[k] = initial[k].split(",")
+                elif isinstance(f, models.DateTimeField):
+                    initial[k] = dateutil.parser.parse(initial[k])
             form = ModelForm(initial=initial)
             prefixes = {}
             for FormSet, inline in zip(self.get_formsets(request), inline_instances):