Как поменять язык месяцев и недель в HTMLCalendar в Django?

Не могу понять как поменять язык в htmlcalendar django

Вот сам код и мне кажется где-то тут надо изменить формат.

models.py

from django.db import models

class Event(models.Model):
    title = models.CharField(max_length=200)
    description = models.TextField()
    start_time = models.DateTimeField()
    end_time = models.DateTimeField()

views.py

from datetime import datetime, date
from datetime import datetime
from django.views import generic
from django.utils.safestring import mark_safe
from .models import *
from .utils import Calendar



class CalendarView(generic.ListView):
    model = Event
    template_name = 'main/calendar.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)

        d = get_date(self.request.GET.get('day', None))

        cal = Calendar(d.year, d.month)

        html_cal = cal.formatmonth(withyear=True)
        context['calendar'] = mark_safe(html_cal)
        return context

def get_date(req_day):
    if req_day:
        year, month = (int(x) for x in req_day.split('-'))
        return date(year, month, day=1)
    return datetime.today()

utils.py

from datetime import datetime, timedelta
from calendar import HTMLCalendar
from .models import Event
from django.utils import dateformat



class Calendar(HTMLCalendar):
    def __init__(self, year=None, month=None):
        self.year = year
        self.month = month
        super(Calendar, self).__init__()


    def formatday(self, day, events):
        events_per_day = events.filter(start_time__day=day)
        d = ''
        for event in events_per_day:
            d += f'<li> {event.title} </li>'

        if day != 0:
            return f"<td><span class='date'>{day}</span><ul> {d} </ul></td>"
        return '<td></td>'


    def formatweek(self, theweek, events):
        week = ''
        for d, weekday in theweek:
            week += self.formatday(d, events)
        return f'<tr> {week} </tr>'


    def formatmonth(self, withyear=True):
        events = Event.objects.filter(start_time__year=self.year, start_time__month=self.month)

        cal = f'<table border="0" cellpadding="0" cellspacing="0" class="calendar">\n'
        cal += f'{self.formatmonthname(self.year, self.month, withyear=withyear)}\n'
        cal += f'{self.formatweekheader()}\n'
        for week in self.monthdays2calendar(self.year, self.month):
            cal += f'{self.formatweek(week, events)}\n'
        return cal