using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        string txnDatestr = "2023-10-06T00:00:00.000+00:00";

        DateTime txnDate = DateTime.ParseExact(txnDatestr, "yyyy-MM-ddTHH:mm:ss.fffzzz", CultureInfo.InvariantCulture);

        Console.WriteLine(txnDate);

        string lastup = "2023-10-07T00:08:18.427+00:00";

        DateTime lastUpdatedDate = DateTime.ParseExact(lastup, "yyyy-MM-ddTHH:mm:ss.fffzzz", CultureInfo.InvariantCulture);

        Console.WriteLine(lastUpdatedDate);

        var txnDateWithTimeStamp = txnDate.Date.AddTicks(lastUpdatedDate.TimeOfDay.Ticks);

        Console.WriteLine(txnDateWithTimeStamp);

        Console.WriteLine(txnDateWithTimeStamp.AddMinutes(1));

​

    }

}