How to print DateTime in Persian format in C#

Question

What is the simplest way to print c# DateTime in Persian? currently I'm using :

static public string PersianDateString(DateTime d)
{
    CultureInfo faIR = new CultureInfo("fa-IR");
    faIR.DateTimeFormat.Calendar = new PersianCalendar();            
    return d.ToString("yyyy/MM/dd", faIR);
}

Which throws an exception

Not a valid calendar for the given culture

Enchilada

Answer 1

First you must note that you cannot put a Jalali Date in a DateTime object, you will get an exception in dates like "1392/02/31".

So you must handle your Jalali dates in a string or a custom DateTime type.

I suggest that you keep your date as a Gregorian date at all time, and convert it when you need to show it.

This is an extension method to get Persian Date from a DateTime object.

    public static string GetPersianDate(this DateTime date)
    {
        PersianCalendar jc = new PersianCalendar();
        return string.Format("{0:0000}/{1:00}/{2:00}", jc.GetYear(date), jc.GetMonth(date), jc.GetDayOfMonth(date));
    }
    //How to use it:
    DateTime d = new DateTime(2014, 05, 21);
    string s = d.GetPersianDate(); //1393/02/31

And then when you have a Jalali date in string format here is the extension method to get the Gregorian date:

    public static DateTime GetDateTimeFromJalaliString(this string jalaliDate)
    {
        PersianCalendar jc = new PersianCalendar();

        try
        {
            string[] date = jalaliDate.Split('/');
            int year = Convert.ToInt32(date[0]);
            int month = Convert.ToInt32(date[1]);
            int day = Convert.ToInt32(date[2]);

            DateTime d = jc.ToDateTime(year, month, day, 0, 0, 0, 0, PersianCalendar.PersianEra);

            return d;
        }
        catch
        {
            throw new FormatException("The input string must be in 0000/00/00 format.");
        }
    }
    //How to use it:
    string pdate = "1392/02/31";
    DateTime dateFromJalali = pdate.GetDateTimeFromJalaliString(); //{5/21/2014 12:00:00 AM}

And now to handle extra functions:

Week name:

    public static string GetDayOfWeekName(this DateTime date)
    {
        switch (date.DayOfWeek)
        {
            case DayOfWeek.Saturday: return "شنبه";
            case DayOfWeek.Sunday: return "يکشنبه";
            case DayOfWeek.Monday: return "دوشنبه";
            case DayOfWeek.Tuesday: return "سه‏ شنبه";
            case DayOfWeek.Wednesday: return "چهارشنبه";
            case DayOfWeek.Thursday: return "پنجشنبه";
            case DayOfWeek.Friday: return "جمعه";
            default: return "";
        }
    }
    //How to use it:
    DateTime date = DateTime.Now;
    string wname = date.GetDayOfWeekName();

Month name:

    public static string GetMonthName(this DateTime date)
    {
            PersianCalendar jc = new PersianCalendar();
            string pdate = string.Format("{0:0000}/{1:00}/{2:00}", jc.GetYear(date), jc.GetMonth(date), jc.GetDayOfMonth(date));

            string[] dates = pdate.Split('/');
            int month = Convert.ToInt32(dates[1]);

            switch (month)
            {
                case 1: return "فررودين";
                case 2: return "ارديبهشت";
                case 3: return "خرداد";
                case 4: return "تير‏";
                case 5: return "مرداد";
                case 6: return "شهريور";
                case 7: return "مهر";
                case 8: return "آبان";
                case 9: return "آذر";
                case 10: return "دي";
                case 11: return "بهمن";
                case 12: return "اسفند";
                default: return "";
            }

    }
    //How to use it:
    DateTime date = DateTime.Now;
    string mname = date.GetMonthName();

Jodijodie

Answer 2

Try like this:

public static string PersianDateString(DateTime d)
{
    CultureInfo faIR = new CultureInfo("fa-IR");
    return d.ToString("yyyy/MM/dd", faIR);
}

and if you changed the format to for example "yyyy MMM ddd" you would get 2011 جوييه الأحد.

Dermis

The most important things is it's can't print Persian weekday and month names and just print Arabic names. Persian month names are فروردین - اردیبهشت - خرداد etc and Persian weekday names are شنبه - یکشنبه etc. This is completely usefulness. – Applicative

I tested this code on my machine and worked for Persian date, great answer. – Combustor

If you don't use the PersianCalendar class then you can get ArgumentOutofRange on same dates where the number of days are different in the month – Fleabane

Answer 3

You can use this:

static public string PersianDateString(DateTime d)
{
    var pc = new PersianCalendar();
    return string.Format("{0:0000}/{1:00}/{2:00}",
        pc.GetYear(d), pc.GetMonth(d), pc.GetDayOfMonth(d));
}

Isidraisidro

That is just convert date to Persian. You must get useful points. The question about formatting as Persian date. like this: چهارشنبه . پنجم آذر ماه 1392 and your answer is usefulness. – Applicative

Answer 4

I create this static class The result will be displayed in this format سه شنبه 28 اسفند 1398

public static class PersianDateString
{
    private static string[] Days = { "یک شنبه", "دو شنبه", "سه شنبه", "چهار شنبه", "پنج شنبه", "جمعه", "شنبه" };
    private static string[] Months = { "فروردین", "اریبهشت", "خرداد", "تیر", "مرداد", "شهریور", "مهر", "آبان", "آذر", "دی", "بهمن" , "اسفند" };
    private static PersianCalendar pc = new PersianCalendar();

    public static string ToPersianDateString(this DateTime date)
    {
        return ($"{Days[pc.GetDayOfWeek(date).GetHashCode()]} {pc.GetDayOfMonth(date)} {Months[pc.GetMonth(date) - 1]} {pc.GetYear(date)}");
    }

}

Usage

string ptime = DateTime.Now.ToPersianDateString();

Sheer

Answer 5

This seams works too:

DateTime d= DateTime.Now;
Console.WriteLine( d.ToString("yyyy/MM/dd", new CultureInfo("fa-IR")) );

Outbut:

1399/06/26

Gangrene