I have the following code on one of my pages and it works fine

@foreach (var item in menuItems){
        var tempMonth = item.GetProperty("eventDateStart").Value;               
        <div class="event-single">
                <a href="@item.Url">@string.Format("{0:dd MMM yyyy}", @tempMonth)</a>
        </div> 
}

On another page I am using Concat to combine to selections into my menuItems and when I use the same code (minus the .Value) the resulting is displayed:

Umbraco.Core.Dynamics.PropertyResult

If I just use @tempMonth within my <a> tags I get a dd/mm/yyyy hh:mm:ss result.

Can anybody guide me as to what the correct code should be?