def _calculate_start(self, hours, minutes, seconds, now = None):
        now = now or datetime.datetime.utcnow()
        delta = (60 * 60 * hours) + (60 * minutes) + seconds
        return datetime.timedelta(seconds = delta) - now
dataset/ETHPy150Open simonw/django-redis-monitor/django_redis_monitor/redis_monitor.py/RedisMonitor._calculate_start/swapped operands of `-`