using System;

public class Program

{

    public static void Main()

    {

        string iDate = "2021-08-26";

        DateTime oDate = Convert.ToDateTime(iDate);

        DateTime LastKirDate = new DateTime(2021, 08, 26);   

        var datenow = DateTime.Today;

        var nexDate = datenow.AddDays(30);

        var datenow2 = Convert.ToDateTime("2021-07-29");

        var nexDate2 = datenow2.AddDays(30);

        Console.WriteLine("Test ");

        string manualDate = "2021-08-22";

        DateTime mDate = (manualDate != "" ? Convert.ToDateTime(manualDate) : DateTime.Today);

        Console.WriteLine("Test Date - " + mDate);

        if(oDate == datenow) {

            Console.WriteLine("Hola Founded!");

        }

        else {

            Console.WriteLine("Not Founded!");

        }

        string resultName = "Pembelian 2021-07-16";

        string newname = Right(resultName, 10);

        DateTime iDate2 = Convert.ToDateTime(newname);

        string dateString = "10-22-2015";  

        // Exception: String was not recognized as a valid DateTime because the day of week was incorrect.  

        DateTime dateTime13 = DateTime.ParseExact(dateString, "MM-dd-yyyy", System.Globalization.CultureInfo.InvariantCulture); // 10/22/2015 12:00:00 AM  

        string temp = dateTime13.ToString();  

        Console.WriteLine("Temp: " + temp);

        Console.WriteLine("Hello Datetime: " + oDate);

        Console.WriteLine("Hello iDate2 : " + iDate2);

        Console.WriteLine("Today: " + datenow);

        Console.WriteLine("Next Date : " + nexDate);

    }

    public static string Right(string value, int length)

    {

        return value.Substring(value.Length - length);

    }

}