using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        var date = DateTime.Parse("2020-10-02T12:08:50.739Z");

        var auDate = date.ToString("D", new CultureInfo("en-US"));

        var ukDate = date.ToString("D", new CultureInfo("en-GB"));

        Console.WriteLine($"AU:{auDate}");

        Console.WriteLine($"UK:{ukDate}");

    }

}