using System;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        string startTime = "2022-11-01T00:00:00";

        DateTime test = DateTime.ParseExact(startTime, "yyyy-MM-ddTHH:mm:ss", CultureInfo.InvariantCulture);

        Console.WriteLine(test.ToString()); // 11/1/2022 12:00:00 AM

        string text = "2022-11-01T00:00:00";

        if (DateTime.TryParseExact(text, "yyyy-MM-ddTHH:mm:ss", null, System.Globalization.DateTimeStyles.AssumeUniversal, out DateTime dt))

        {

            Console.WriteLine(dt.ToString("u"));

        }

        else

        {

            Console.WriteLine("bad");

        }

    }

}