AlarmForm2.cs

using System;
using System.Windows.Forms;

namespace Alarm
{
public partial class Form2 : Form
{

public Form2()
{
InitializeComponent();
}

private void Form2_Load(object sender, EventArgs e)
{
if (alarmFlg)
{
numericUpDownHour.Value = hour;
numericUpDownMinute.Value = minute;
}
else
{
var now = DateTime.Now;
hour = now.Hour;
minute = now.Minute;
numericUpDownHour.Value = now.Hour;
numericUpDownMinute.Value = now.Minute;
}

}

private void ButtonOK_Click(object sender, EventArgs e)
{
hour = (int)numericUpDownHour.Value;
minute = (int)numericUpDownMinute.Value;
Close();
}

private void ButtonCansel_Click(object sender, EventArgs e)
{
Close();
}
}
}