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protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Timer t = new Timer(1000);
t.Elapsed += new ElapsedEventHandler(this.TimerEventFunction);
t.AutoReset = true;
t.Enabled = true;
}
}
protected void TimerEventFunction(Object sender, ElapsedEventArgs e)
{
//Console.WriteLine(e.SignalTime.ToString());
lbTime.Text = e.SignalTime.ToString();
}
<script type="text/javascript">
function startTime()
{
var today=new Date()
var h=today.getHours()
var m=today.getMinutes()
var s=today.getSeconds()
// add a zero in front of numbers<10
m=checkTime(m)
s=checkTime(s)
document.getElementById('<% = txt.ClientID%>').value=h+":"+m+":"+s
t=setTimeout('startTime()',500)
}
function checkTime(i)
{
if (i<10)
{i="0" + i}
return i
}
</script>
<body onload="startTime()">
<asp:TextBox id="lbTime" id="txt" runat="server"></asp:TextBox>
</body>