MVC 3 Child Output Caching

Controllers\HomeController.cs
public class HomeController : Controller
{
[OutputCache(Duration = 60)]
public ActionResult Index()
{
var model = DateTime.Now;
return View(model);
}

[ChildActionOnly]
[OutputCache(Duration = 10)]
public PartialViewResult CurrentTime(){
var model = DateTime.Now;
return PartialView(model);
}
}

Views\Home\CurrentTime.cshtml
@model DateTime
<p>This is the child action result, current time is: @Model.ToLongTimeString()</p>

Views\Home\Index.cshtml
@model DateTime
@{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>Index</h2>
<div>This is the index view for Home, rendering at time: @Model.ToLongTimeString()</div>
<div>@Html.Action("CurrentTime")</div>