private void createAlarmButton_Click(object sender, EventArgs e)
{
clock.AddAlarm(
alarmDatePicker.Value.Year,
alarmDatePicker.Value.Month,
alarmDatePicker.Value.Day,
Int32.Parse(hourTextBox.Text),
Int32.Parse(minuteTextBox.Text),
descriptionTextBox.Text);
this.Close();
parentForm.Show();
}