using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        var unitedStatesCultureInfo = new CultureInfo("en-US");

        const string valueToParse = "4/16/2022";

        if (DateOnly.TryParse(valueToParse, unitedStatesCultureInfo, default, out var date))

            Console.WriteLine("OK!");

        Console.WriteLine(date.ToString());

    }

}