def get_jobs_to_queue(self, with_times=False):
        """
        Returns a list of job instances that should be queued
        (score lower than current timestamp).
        If with_times is True a list of tuples consisting of the job instance and
        it's scheduled execution time is returned.
        """
        return self.get_jobs(to_unix(datetime.utcnow()), with_times=with_times)