oap_labs/MainWindow.xaml

<Window x:Class="WpfApp4.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:WpfApp4"
        xmlns:sys="clr-namespace:System;assembly=mscorlib"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800"
        Background="PeachPuff"
        >
    <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>