statestriplable不显示时间

我写了一个winform程序，这是二级窗口的时间显示代码，我想让时间显示在状态栏上，但不知道为什么，运行以后没有反应，这是我的窗口代码

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 WindowsFormsApp1
{
    public partial class admin1 : Form
    {
        public admin1()
        {
            InitializeComponent();
        }

        private void toolStripStatusLabel1_Click(object sender, EventArgs e)
        {
            

        }

     
        private void admin1_Load(object sender, EventArgs e)
        {
            this.toolStripStatusLabel1.Text = "本次登录时间戳为：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
        }

        private void statusStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {

        }

        private void toolStripStatusLabel1_Click_1(object sender, EventArgs e)
        {
           
        }
    }
}