MainPage.cs

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 RDCNEW
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void MainPage_Load(object sender, EventArgs e)
        {
            DateTime timenow = DateTime.Now;
            label2.Text = timenow.ToString();
            Clock.Start();

        }

        private void Clock_Tick(object sender, EventArgs e)
        {
            label2.Text = DateTime.Now.ToString();
        }
    }
}