using System;

public class Test
{
  public static void Main()
  {
    var date0 = DateTime.Now;
    double dbl = date0.Ticks;
    var date1 = new DateTime((long)dbl);
    
    Console.WriteLine(date0.ToString("yyyy_MM_dd HH:mm:ss.fffffff"));
    Console.WriteLine(date1.ToString("yyyy_MM_dd HH:mm:ss.fffffff"));

    Console.WriteLine(date0.Ticks);
    Console.WriteLine(date1.Ticks);
  }
}