<script language="javascript">
var a = new Date()
a = <%=System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")%>;
Response.Write(a)
</script>

<script runat="server" language="javascript">
var a = new Date();
a =a.getFullYear()+ "-"+(a.getMonth()+1)+"-"+a.getDate()+" "+a.getHours()+":"+a.getMinutes();
Response.Write(a);
</script>