using System;
using System.Globalization;
public class MainClass {
public static void Main() {
DateTime dt = new DateTime(2000, 1, 2);
CultureInfo iv = CultureInfo.InvariantCulture;
Console.WriteLine(dt.ToString(iv)); // 01/02/2000 00:00:00
Console.WriteLine(dt.ToString("d", iv)); // 01/02/2000
}
}