Auto update time in page in the top corner

<asp:ScriptManager ID="ScriptManager1" runat="server">
    </asp:ScriptManager>
    <div style="float:right;border:solid 1px blue">
        <asp:UpdatePanel ID="UpdatePanel3" runat="server">
        <ContentTemplate>
            <asp:Label ID="Label3" runat="server" Text="Time" ForeColor="#d0224e"></asp:Label>
            <asp:Timer ID="Timer1" runat="server" Interval="1000" ontick="Timer1_Tick">
            </asp:Timer>
        </ContentTemplate>
        </asp:UpdatePanel>
    </div>

    protected void Timer1_Tick(object sender, EventArgs e)
    {
        Label3.Text = DateTime.Now.ToString();
    }