Why date comparison is not working as expected?

Hi, can anyone tell me why the date comparison is not working as expected in the following example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using cAlgo.API;
using cAlgo.API.Collections;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class Stat2 : Indicator
    {
        private int lastIndex = 1;
        
        private double top = double.MinValue;
        private DateTime topTime = DateTime.MinValue;
        
        private double bottom = double.MaxValue;
        private DateTime bottomTime = DateTime.MinValue;
        
        protected override void Initialize()
        {
        
        }
        
        public override void Calculate(int index)
        {
            if (index > lastIndex)
            {
                if (lastIndex != 0)
                {
                    if (Bars.OpenTimes[lastIndex].Hour == 0)
                    {
                        if (top != double.MinValue && bottom != double.MaxValue)
                        {
                            Print(Bars.OpenTimes[lastIndex] + ": top = " + top + ", topTime = " + topTime + ", bottom = " + bottom + ", bottomTime = " + bottomTime);
                            if (bottomTime < topTime)
                                Print(Bars.OpenTimes[lastIndex] + ": Bottom first");
                            
                            if (topTime > bottomTime)
                                Print(Bars.OpenTimes[lastIndex] + ": Top first");
                        }
                        
                        top = Bars.HighPrices[lastIndex];
                        topTime = Bars.OpenTimes[lastIndex];
                        
                        bottom = Bars.LowPrices[lastIndex];
                        bottomTime = Bars.OpenTimes[lastIndex];
                    }
                    else
                    {
                        if (Bars.HighPrices[lastIndex] > top)
                        {
                            top = Bars.HighPrices[lastIndex];
                            topTime = Bars.OpenTimes[lastIndex];
                        }
                            
                        if (Bars.LowPrices[lastIndex] < bottom)
                        {
                            bottom = Bars.LowPrices[lastIndex];
                            bottomTime = Bars.OpenTimes[lastIndex];
                        }
                    }
                }
                
                lastIndex = index;
            }
        }
    }
}

What I get is that lines

Print(Bars.OpenTimes[lastIndex] + ": Bottom first");

and 

Print(Bars.OpenTimes[lastIndex] + ": Top first");

are both executed.

Kind regards,

m.