using System;

using System.Security.Cryptography;

using System.Text;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        var textToConver = "test"; //change this

        //var result = Convert(textToConver);

        //Console.WriteLine(result);

        Console.WriteLine(DateTime.UtcNow.ToString("s", DateTimeFormatInfo.InvariantInfo));

    }

    private static string Convert(string text)

    {

        var bytes = Encoding.UTF8.GetBytes(text);

        var sha256Managed = new SHA256Managed();

        var hash = sha256Managed.ComputeHash(bytes);

        return System.Convert.ToBase64String(hash);

    }

}