Microsoft.JScript.DatePrototype.UTC C# (CSharp) Méthode

      internal static double UTC(double localTime){
        return localTime - (DaylightSavingsTime(localTime)
          ? localDaylightTZA : localStandardTZA);
      }

        public new DateObject CreateInstance(params Object[] args)
        {
            if (args.Length == 0)
            {
                return(new DateObject(this.originalPrototype, DateTime.Now.ToUniversalTime().Ticks / DatePrototype.ticksPerMillisecond - DatePrototype.msTo1970));
            }
            if (args.Length == 1)
            {
                Object       arg0  = args[0];
                IConvertible ic    = Convert.GetIConvertible(arg0);
                TypeCode     tcode = Convert.GetTypeCode(arg0, ic);
                if (tcode == TypeCode.DateTime)
                {
                    return(new DateObject(this.originalPrototype, ic.ToDateTime(null).ToUniversalTime().Ticks / DatePrototype.ticksPerMillisecond - DatePrototype.msTo1970));
                }
                Object yv = Convert.ToPrimitive(arg0, PreferredType.Either, ref ic);
                if (Convert.GetTypeCode(yv, ic) == TypeCode.String)
                {
                    return(new DateObject(this.originalPrototype, parse(ic.ToString(null))));
                }
                double d = Convert.ToNumber(yv, ic);
                if (DatePrototype.minDate <= d && d <= DatePrototype.maxDate)
                {
                    return(new DateObject(this.originalPrototype, d));
                }
                return(new DateObject(this.originalPrototype, Double.NaN));
            }
            double dyear    = Convert.ToNumber(args[0]);
            double dmonth   = Convert.ToNumber(args[1]);
            double ddate    = (args.Length > 2) ? Convert.ToNumber(args[2]) : 1;
            double dhours   = (args.Length > 3) ? Convert.ToNumber(args[3]) : 0;
            double dminutes = (args.Length > 4) ? Convert.ToNumber(args[4]) : 0;
            double dseconds = (args.Length > 5) ? Convert.ToNumber(args[5]) : 0;
            double dms      = (args.Length > 6) ? Convert.ToNumber(args[6]) : 0;
            int    y        = (int)dyear;

            if (!Double.IsNaN(dyear) && 0 <= y && y <= 99)
            {
                dyear = y + 1900;
            }
            double day  = DatePrototype.MakeDay(dyear, dmonth, ddate);
            double time = DatePrototype.MakeTime(dhours, dminutes, dseconds, dms);

            return(new DateObject(this.originalPrototype, DatePrototype.TimeClip(DatePrototype.UTC(DatePrototype.MakeDate(day, time)))));
        }