lab/WpfApp1/MainWindow.xaml

<Window 
    x:Class="BindingApp.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:BindingApp"
    mc:Ignorable="d"
    Title="MainWindow" 
    Height="150" 
    Width="300"
>
    <Window.Resources>
        <sys:DateTime x:Key="myDate">
            2/12/2016
        </sys:DateTime>
        <local:DateTimeToDateConverter 
        x:Key="myDateConverter" />
    </Window.Resources>
    <StackPanel>
        <TextBlock 
        Text="{Binding 
            Source={StaticResource myDate},
            Converter={StaticResource myDateConverter}}" />
        <TextBlock 
        Text="{Binding 
            Source={StaticResource myDate}}" />
    </StackPanel>

</Window>