Trying out date accuracy

DateTimeConversion.cs

using System;
using System.Globalization;
using System.Data.SqlTypes;

public class Program
{    
     public static void Main()    
     {
        Console.WriteLine("2016,11, 13,7,11,58,837.0");    
        SqlDateTime dateToTestSql = new SqlDateTime(2016,11, 13,7,11,58,837.0);

        Console.WriteLine(dateToTestSql.ToString());    
        Console.WriteLine(dateToTestSql.Value.Millisecond.ToString());    

        DateTime dateToTest = (DateTime)dateToTestSql;
        Console.WriteLine(dateToTest.ToString("O"));

        Console.WriteLine(""); 
        Console.WriteLine("2016,11, 13,7,11,58,836.0");    
        dateToTestSql = new SqlDateTime(2016,11, 13,7,11,58,836.0);

        Console.WriteLine(dateToTestSql.ToString());    
        Console.WriteLine(dateToTestSql.Value.Millisecond.ToString());    

        dateToTest = (DateTime)dateToTestSql;
        Console.WriteLine(dateToTest.ToString("O"));

        Console.WriteLine("");    
        Console.WriteLine("2016,11, 13,7,11,58,834.0");    
        dateToTestSql = new SqlDateTime(2016,11, 13,7,11,58,834.0);

        Console.WriteLine(dateToTestSql.ToString());    
        Console.WriteLine(dateToTestSql.Value.Millisecond.ToString());    

        dateToTest = (DateTime)dateToTestSql;
        Console.WriteLine(dateToTest.ToString("O"));    
     }
}