using System;

using System.Globalization;

public class Program

{

    public static void Main()

    {

        (string input, string format)[] inputs = {

                ("周二 5月 16 14:41:40 +0800 2023", "ddd MMM dd HH:mm:ss zzz yyyy"),

                ("5月 16 14:41:40 +0800 2023", "MMM dd HH:mm:ss zzz yyyy")

        };

​

        var ci = new CultureInfo("zh-CN");

​

        foreach(var item in inputs)

        {

            var dto = DateTimeOffset.ParseExact(item.input, item.format, ci);

            Console.WriteLine(dto);

        }

    }

}