how do not open positios on saturdays?

how do not open positios on saturdays?

Please, someone coud help me to improve the code below to not open positions on saturdays.

I'm newbie but I swear that I have studied a lot ... but I could not figure out how to do this.... thanks

COde ...

using System.Linq;

using cAlgo.API;

using System.IO;

using System.Collections;

using System.Collections.Generic;

using cAlgo.API.Indicators;

using cAlgo.API.Internals;

using cAlgo.Indicators;

namespace cAlgo

{

    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.FileSystem)]

    public class MACD : Robot

    {

        [Parameter("Volume", DefaultValue = 1000)]

        public int volume { get; set; }

        [Parameter(DefaultValue = 52, MinValue = 1)]

        public int StopLoss { get; set; }

        [Parameter(DefaultValue = 58, MinValue = 1)]

        public int TakeProfit { get; set; }

        [Parameter("MACD LongCycle", DefaultValue = 43, MinValue = 1)]

        public int LongCycle { get; set; }

        [Parameter("MACD ShortCycle", DefaultValue = 10, MinValue = 1)]

        public int ShortCycle { get; set; }

        [Parameter("MACD Period", DefaultValue = 10, MinValue = 1)]

        public int MACDPeriod { get; set; }

        private MacdCrossOver _MACD;

       

protected override void OnBar()

        {

            if (Positions.Count < 20)

            {

                var dailySeries = MarketData.GetSeries(TimeFrame.Daily);

                _MACD = Indicators.MacdCrossOver(dailySeries.Close, LongCycle, ShortCycle, MACDPeriod);

                if (_MACD.MACD.Last(1) < _MACD.Signal.Last(1) && _MACD.MACD.Last(0) > _MACD.Signal.Last(0) && _MACD.Signal.Last(0) < 0)

                {

                    ExecuteMarketOrder(TradeType.Buy, Symbol, volume, "EUR/USD C", StopLoss, TakeProfit, 5);

                }

                if (_MACD.MACD.Last(1) > _MACD.Signal.Last(1) && _MACD.MACD.Last(0) < _MACD.Signal.Last(0) && _MACD.Signal.Last(0) > 0)

                {

                    ExecuteMarketOrder(TradeType.Sell, Symbol, volume, "EUR/USD C", StopLoss, TakeProfit, 5);

                }

            }

        }

        protected override double GetFitness(GetFitnessArgs args)

        {

            //maximize count of winning trades and minimize count of losing trades

            return args.WinningTrades / args.LosingTrades;