How do I code "day of the week" in Japanese in Visual Studios?

Question

How do I code "day of the week" in Japanese in Visual Studios?

Danleif 41

I am making a clock in a Windows Forms App. Now "ddd" displays "Mon", for example. But I want it to say "月".　Currently Form1 has:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Aesthetic_Date_Clock
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void tmrTimer_Tick(object sender, EventArgs e)
        {
            label1.Text = DateTime.Now.ToString("HH : mm : ss");
            label2.Text = DateTime.Now.ToString("yy / MM / dd");
            label3.Text = DateTime.Now.ToString("ddd");
        }
    }
}

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Answer 1

Daniel Zhang-MSFT 9,661

Hi Danleif-7903,
You can use DateTime.DayOfWeek property to get the day of the week represented by this instance.
Please refer to the following code:

var culture = new System.Globalization.CultureInfo("ja-JP");  
var day = culture.DateTimeFormat.GetDayName(DateTime.Today.DayOfWeek);  
label3.Text = day;

Best Regards,
Daniel Zhang

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Danleif 41 Reputation points

2021-03-01T11:32:44.637+00:00

That worked! Mostly... I just want to have the day of the week in the "ddd" format (金), not "dddd" (金曜日). Is this possible? Thank you.
Daniel Zhang-MSFT 9,661 Reputation points

2021-03-02T02:42:21.663+00:00
Hi @Danleif ,
You can use Substring to get the "金".

label3.Text = day.Substring(0, 1);

Here is also a method you can refer to.

label3.Text= DateTime.Today.ToString("ddd", CultureInfo.GetCultureInfo("ja-JP"));

Best Regards,
Daniel Zhang
Danleif 41 Reputation points

2021-03-02T09:35:58.32+00:00

The second option worked. I just needed to add "using System.Globalization;" to the beginning as @Viorel stated. Thanks a lot!

Answer 2

Viorel 126.9K

Try this fragment:

CultureInfo c = CultureInfo.GetCultureInfo( "ja-JP" );
CultureInfo.CurrentCulture = CultureInfo.CurrentUICulture = c;

DateTime now = DateTime.Now;

label1.Text = now.ToLongTimeString( );
label2.Text = now.ToShortDateString( );
label3.Text = now.ToString( "ddd" );

Igor Tandetnik 1,116 Reputation points

2021-02-28T15:38:08.097+00:00

There's also a two-parameter overload of DateTime.toString, that takes culture as the second parameter. This way, you don't need to change the current culture.
Danleif 41 Reputation points

2021-02-28T21:43:34.193+00:00

The fragment gives me errors:

The type of namespace name 'CultureInfo' could not be found

The name 'CultureInfo' does not exist in the current context

'ToLongTimeString' and 'ToLongDateString' takes 1 arguments. No overload for method
Danleif 41 Reputation points

2021-02-28T21:45:14.847+00:00

How do I write the two-parameter overload? Or where can I find instructions?
Viorel 126.9K Reputation points

2021-03-01T06:22:29.52+00:00

Probably you must add using System.Globalization; to the beginning of the file.

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How do I code "day of the week" in Japanese in Visual Studios?

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