I have able to make a bot very easily by reading the docs but Jobqueue is not working as per it is written. The run_daily method uses a datetime.time object to send the message at a particular time but this code neither does its job of sending a message nor shows any errors. It just keeps running
    import datetime
    from telegram import bot
    from telegram.ext import Updater
    def callback_minute(bot, job):
        bot.send_message(chat_id=475838704, text='PlEaSe wOrK!')
    def main():
        updater = Updater()
        bot = updater.bot
        job = updater.job_queue
        dispatcher = updater.dispatcher
        job.run_daily(callback_minute, time=datetime.time(6,33,00))
        updater.start_polling()
        updater.idle()
    if __name__ == '__main__':
        main()
 
                        
Maybe this would help:
and say to bot
/notify