public static void turnLights(bool on, string line)
        {
            DateTime now = convertToTimeZone(DateTime.Now, line);

            if (hasLightsOnFeature())
            {
                using (DB db = new DB(DBHelper.GetConnectionString(Filter_Client)))
                {
                    ProductionSchedule ps = new ProductionSchedule();

                    ps.EventTime = now;
                    ps.Client = Filter_Client;
                    ps.Line = line;
                    ps.LightsOn = on;

                    db.AddToProductionSchedules(ps);

                    int res = db.SaveChanges();
                }
            }
        }