settings.py

from celery.schedules import crontab
   
CELERY_BROKER_URL = 'redis://localhost:6379' #You can also refrence a remote url from e.g heroku 
CELERY_TIMEZONE = 'Europe/Warsaw'   
HOUR = 0
DAY = 0
# Let's make things happen 
CELERY_BEAT_SCHEDULE = {
 'send-sms-every-hour': {
       'task': 'send-sms',
        # There are 4 ways we can handle time, read further 
       'schedule': 3600.0,
        # If you're using any arguments
       'args': ('We don't need any',),
    },
    # Executes every Friday at 6am
    'send-notification-on-friday-afternoon': { 
         'task': 'my_app.tasks.send_notification', 
         'schedule': crontab(hour=HOUR, day_of_week=DAY),
        },          
}