Hi Guys , I have posted this article to explain about a simple alarm application Place a label to display today's datetime , 3 text boxes for hh mm ss , 2 radio buttons for Alarm on or off and a button. Done in C#.net Code is . . . using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Boolean alarm = false; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { label1.Text = DateTime.Today.ToString("yyyy:mm:dd hh:mm:ss"); } private void button1_Click(object sender, EventArgs e) { label1.Show(); timer1.Enabled = true; } private void timer1_Tick(object sender, EventArgs e) { DateTime dat = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day, Convert.ToInt32(textBox1.Text), Convert.ToInt32(textBox2.Text), Convert.ToInt32(textBox3.Text)); String AlarmTime = dat.ToString(); if(DateTime.Now > dat && alarm) { PlayAlarm()-----> any media player control or u can give as My.computer.audio.play(filename) } } private void radioButton1_CheckedChanged(object sender, EventArgs e) { alarm = true; } private void radioButton2_CheckedChanged(object sender, EventArgs e) { alarm = false; } } }