Как сделать таймер с циферблатом и стрелками на C#

 using System; 
using System.Drawing; 
using System.Windows.Forms; 
 
public class ClockForm : Form 
{ 
    private readonly Timer timer = new Timer { Interval = 1000 }; 
    private const int ClockSize = 200; 
    private const int CenterX = ClockSize / 2; 
    private const int CenterY = ClockSize / 2; 
 
    public ClockForm() 
    { 
        ClientSize = new Size(ClockSize, ClockSize); 
        DoubleBuffered = true; 
        timer.Tick += (_, __) => Invalidate(); 
        timer.Start(); 
    } 
 
    protected override void OnPaint(PaintEventArgs e) 
    { 
        var g = e.Graphics; 
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; 
 
        DrawClockFace(g); 
        DrawClockHands(g); 
    } 
 
    private void DrawClockFace(Graphics g) 
    { 
        g.FillEllipse(Brushes.White, 0, 0, ClockSize, ClockSize); 
        g.DrawEllipse(Pens.Black, 0, 0, ClockSize, ClockSize); 
 
        for (int i = 1; i <= 12; i++) 
        { 
            var angle = i * 30 * Math.PI / 180; 
            var x = (int)(CenterX + 80 * Math.Sin(angle)); 
            var y = (int)(CenterY - 80 * Math.Cos(angle)); 
            g.DrawString(i.ToString(), Font, Brushes.Black, x - 7, y - 7); 
        } 
    } 
 
    private void DrawClockHands(Graphics g) 
    { 
        var now = DateTime.Now; 
        DrawHand(g, now.Hour % 12 / 6f * (float)Math.PI, 60, Pens.Black, 6); 
        DrawHand(g, now.Minute / 30f * (float)Math.PI, 80, Pens.Blue, 4); 
        DrawHand(g, now.Second / 30f * (float)Math.PI, 90, Pens.Red, 2); 
    } 
 
    private void DrawHand(Graphics g, float angle, int length, Pen pen, int width) 
    { 
        g.DrawLine(new Pen(pen.Color, width), 
            CenterX, CenterY, 
            CenterX + (int)(length * Math.Sin(angle)), 
            CenterY - (int)(length * Math.Cos(angle))); 
    } 
 
    public static void Main() => Application.Run(new ClockForm()); 
}