django forms DateTimeInput widgets instace value

Question

I have in Django class base UpdateView with form:

class MyForm(forms.ModelForm):
    
    class Meta:
        model = Mymodel
        fields = ['name', 'element', 'time_strat', 'time_end']

        widgets = {
            'time_strat': forms.DateTimeInput(attrs={'type': 'datetime-local'}),
            'time_end':  forms.DateTimeInput(attrs={'type': 'datetime-local'})     
        }

and without widgets the view renders (with values in the date time field): form without widgets

with widgets i have date time picker but without values:

form with widgets

How to have a values in DateTimeInput widget (date time picker and instance value)?

Answer 1

solved, for it to work, appropriate format need to set: 2021-07-01T01:00 or 2021-01-01T01:00:00.

 'time_end':  forms.DateTimeInput(format=('%Y-%m-%dT%H:%M'), attrs={'type': 'datetime-local'})