Timer countdown with ASP.NET AJAX

i try to develop a countdown timer (not a bomb) to open another form and close the existing one

code below i found from article :

the count down timer has to be 1:30:60
<asp:ScriptManager ID="ScriptManager1" runat="server"> 
        <asp:UpdatePanel ID="UpdatePanel1" runat="server"> 
            <asp:Label ID="Label2" runat="server">30</asp:Label> 
            <asp:Label ID="Label1" runat="server">5</asp:Label> 
            <asp:Timer ID="Timer1" runat="server" Interval="1000"  

protected void Timer1_Tick(object sender, EventArgs e)
            int seconds = int.Parse(Label1.Text);
            int minutes = int.Parse(Label2.Text);
            int counter = 60;

            // while (counter > 0)
                if (seconds > 0)
                    Label1.Text = (seconds - 1).ToString();
                else if (seconds == 0)
                    counter -= 1;
                    Label2.Text = (minutes - 1).ToString();
                    Timer1.Enabled = false;


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So we guess what the problem with this is?
doramail05Author Commented:
solved with using javascript countdown timer in another post


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