Prior Day High Low Indicator: How do I Ignore Sundays?

Hi all

I am using the indicator below which shows the high and low levels for the prior day but it picks up Sunday's short session on a Monday where I want Monday to show Friday's high and low (effectively ignoring Sunday).

I'd be grateful if someone could confirm how I do this.

Much appreciated.

David

using System;
using System.Globalization;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;
using System.Windows.Forms;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class DailyHighLow : Indicator
    {
        [Parameter("Start Time", DefaultValue = "2:00 am", Group = "Indicator")]
        public string startTime { get; set; }

        [Parameter("End Time", DefaultValue = "8:00 am", Group = "Indicator")]
        public string endTime { get; set; }

        [Parameter("Alerts", DefaultValue = false, Group = "Alerts")]
        public bool alertOn { get; set; }

        [Parameter("Alerts text", DefaultValue = "Alert", Group = "Alerts")]
        public string alert_text { get; set; }

        //[Parameter("Email Alert On", DefaultValue = false, Group = "Alerts")]
        //public bool emailAlertOn { get; set; }

        //[Parameter("Email Adress", DefaultValue = "", Group = "Alerts")]
        //public string email_adress { get; set; }

        //[Parameter("Email Subject", DefaultValue = "", Group = "Alerts")]
        //public string email_subject { get; set; }

        //[Parameter("Email Text", DefaultValue = "", Group = "Alerts")]
        //public string email_texts { get; set; }

        private double high = 0, low = 99999999, maxDay, minDay;
        private DateTime startT, endT;
        private int oldDay;

        [Output("High", LineColor = "Orange")]
        public IndicatorDataSeries DayHigh { get; set; }

        [Output("Low", LineColor = "Orange")]
        public IndicatorDataSeries DayLow { get; set; }
        protected override void Initialize()
        {
            // Initialize and create nested indicators
            startT = StringToTime(startTime);
            endT = StringToTime(endTime);
        }

        DateTime time;
        public override void Calculate(int index)
        {
            // Calculate value at specified index
            // Result[index] = ...
            HighestNLowest(startT, endT, index, ref high, ref low);
            if (maxDay != 0 && minDay != 99999999)
            {
                DayHigh[index] = maxDay;
                DayLow[index] = minDay;
                if (time != Bars[index].OpenTime)
                {
                    if (Bars[1].Close < maxDay && Bars[0].Close > maxDay)
                    {
                        if (alertOn)
                        {
                            string message = "Daily H/L Cross High. " + alert_text;
                            MessageBoxButtons buttons = MessageBoxButtons.OK;
                            DialogResult result;
                            result = MessageBox.Show(message, "Alert", buttons);
                            Print("Daily H/L Cross High. " + alert_text);
                        }

                        time = Bars[index].OpenTime;
                    }
                    if (Bars[1].Close > maxDay && Bars[0].Close < maxDay)
                    {
                        if (alertOn)
                        {
                            string message = "Daily H/L Cross Low. " + alert_text;
                            MessageBoxButtons buttons = MessageBoxButtons.OK;
                            DialogResult result;
                            result = MessageBox.Show(message, "Alert", buttons);
                            Print("Daily H/L Cross High. " + alert_text);
                        }
                        //if (emailAlertOn)
                        //    Print("Daily H/L Cross Low. " + alert_text);
                        time = Bars[index].OpenTime;
                    }
                }

            }
        }

        private DateTime StringToTime(string sTime)
        {
            if (string.IsNullOrEmpty(sTime))
                return DateTime.Now;
            CultureInfo provider = CultureInfo.InvariantCulture;
            string format = "h:mm tt";
            DateTime dTime;

            dTime = DateTime.ParseExact(sTime, format, provider);

            return dTime;
        }

        private void HighestNLowest(DateTime startT, DateTime endT, int index, ref double high, ref double low)
        {
            int endHour = -1;
            if (endT.Hour == startT.Hour)
                endHour = 24;
            else
                endHour = endT.Hour;
            if ((Bars[index].OpenTime.Hour == 0 && Bars[index].OpenTime.Minute == 0) || Bars[index].OpenTime.Day != oldDay)
            {
                maxDay = high;
                minDay = low;
                high = 0;
                low = 99999999;
                oldDay = Bars[index].OpenTime.Day;
            }
            if ((Bars[index].OpenTime.Hour >= startT.Hour) && (Bars[index].OpenTime.Hour < endHour) && (Bars[index].OpenTime.Minute >= startT.Minute))
            {
                high = Math.Max(Bars[index].High, high);
                low = Math.Min(Bars[index].Low, low);
            }
            if (Bars[index].OpenTime.Hour == endHour && Bars[index].OpenTime.Minute >= endT.Minute)
            {
                oldDay = Bars[index].OpenTime.Day;
            }
        }
    }
}