from django_jalali.db import models as jmodels

class Order(models.Model):
delivery_date =  jmodels.jDateTimeField(verbose_name='تاریخ تحویل')

class Order(forms.ModelForm):

class Meta:
    model = Order
    widgets = {
        'delivery_date': forms.DateInput(attrs={'id':'datepicker'}),
    }

<script>
    $(document).ready(function() {
        $("#datepicker").datepicker({
            minDate: 2,
            maxDate: "+10D",
            isRTL: true
        });

    });
   </script>

YEAR_CHOICES = range(1377, 1300, -1)
MONTH_CHOICES = {1: 'فروردین',2: 'اردیبهشت',3: 'خرداد',4: 'تیر',5: 'مرداد',6: 'شهریور',7: 'مهر',8: 'آبان',9: 'آذر',10: 'دی',11: 'بهمن',12: 'اسفند'}

class ProfileUpdate(forms.ModelForm):
    class Meta:
        model = Profile
        fields = '__all__'

    def __init__(self, *args, **kwargs):
        super(ProfileUpdate, self).__init__(*args, **kwargs)
        self.fields['birthday'] = forms.DateField(required=False, widget=extras.SelectDateWidget(empty_label=['سال', 'ماه', 'روز'], years=YEAR_CHOICES, months=MONTH_CHOICES))

INSTALLED_APPS = [
    ...
    'jalali_date',
    ...
]

from jalali_date import datetime2jalali, date2jalali

def my_view(request):
     jalali_join = datetime2jalali(request.user.date_joined).strftime('%y/%m/%d _ %H:%M:%S')

{% load jalali_tags %}

<p>{{ request.user.date_joined|to_jalali:'%y/%m/%d _ %H:%M:%S' }}</p>

from django.contrib import admin
from jalali_date.admin import ModelAdminJalaliMixin, StackedInlineJalaliMixin, TabularInlineJalaliMixin

class MyInlines1(TabularInlineJalaliMixin, admin.TabularInline):
    model = SecendModel

class MyInlines2(StackedInlineJalaliMixin, admin.StackedInline):
    model = ThirdModel

@admin.register(FirstModel)
class FirstModelAdmin(ModelAdminJalaliMixin, admin.ModelAdmin):
    inlines = (MyInlines1, MyInlines2, )
    readonly_fields = ('some_fields', 'date_field',)