Программа с каждой секундой увеличивает занимаемую память - C#

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 WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Resize(object sender, EventArgs e)
        {
            if (WindowState == FormWindowState.Minimized)
            {
                Hide();
            }
 
        }

        private void Hours_TextChanged(object sender, EventArgs e)
        {
        }
 
        private void Start_Click(object sender, EventArgs e)
        {
            timer1.Start();
        }
 
        private void TimeSleep_Click(object sender, EventArgs e)
        {
        }
 
        private void timer1_Tick(object sender, EventArgs e)
        {
            TimeSleep.Text = "" + DateTime.Now.Hour + "Часов" + DateTime.Now.Minute + "Минут" + DateTime.Now.Second + "Секунд";
            if(DateTime.Now.Hour == Int32.Parse(Hours.Text) && DateTime.Now.Minute == Int32.Parse(Minutes.Text) && DateTime.Now.Second == Int32.Parse(Seconds.Text))
            {
                (sender as Timer).Stop();
                System.Diagnostics.Process.Start("cmd", "/c shutdown -s -f -t 00");
            }
        }
 
        private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            Show();
            WindowState = FormWindowState.Normal;
        }
    }
}