C# - trigger winform app at a specific time

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C#

DateTime

I am developing small winform app to send an automatic email to customer at a specific time everyday.The customer will set the time from the UI, so when the system time = time set by customer, my app will send email. I included a datetimepicker in which customer set his desired trigger time. The customized the format of date time picker to time.

private void timer1_Tick(object sender, EventArgs e)
        {
            timer1.Enabled = true;
            timer1.Interval = 1000;
            toolStripTextBox1.Text = DateTime.Now.ToString("dd-MM-yyyy");
            toolStripTextBox2.Text = DateTime.Now.ToString("h:mm:ss tt");
           
        }

private void Form1_Load(object sender, EventArgs e)
       {

           dateTimePicker1.Format = DateTimePickerFormat.Time;
           dateTimePicker1.ShowUpDown = true;
           dateTimePicker1.CustomFormat = "h:mm:ss tt";
           dateTimePicker1.Value = DateTime.Now;
       }

I am confused now that, how to comapre if datetimepicker.value = toolStripTextBox2.Text? Because even if I comapre, there is no error but still email is not getting sent.

What I have tried:

if (dateTimePicker1.Value.ToString() == toolStripTextBox2.Text)
{
textBox3.Text = "problem solved";
}