Culture difference between Label and TextBlock

Question

I have been playing with WPF for a while and I came across an interesting thing. When I bind DateTime object to the Label's content then I see locally formatted representation of the date. However, when I bind to the TextBlock's Text property then I actually see English one.

It seems that TextBlock is using some sort of converter whereas Label is just calling ToString method but I am not sure about it.

If so, why doesn't the Label use the converter too?

Is there any reason it works this way? I provide a short sample to let you guys inspect what's going on:

// MainWindow.xaml
<Window x:Class="BindConversion.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"
    mc:Ignorable="d"
    Title="MainWindow" Height="350" Width="525">
    <StackPanel HorizontalAlignment="Center" Margin="3">
        <StackPanel>
            <Label Content="{Binding Dt}"/>
            <TextBlock Text="{Binding Dt}"/>
        </StackPanel>
    </StackPanel>
</Window>

// MainWindow.xaml.cs
using System;
using System.Windows;

namespace BindConversion
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public DateTime Dt { get; set; }
        public MainWindow()
        {
            InitializeComponent();

            DataContext = this;
            Dt = DateTime.Now;
        }
    }
}

Answer 1

If you take a closer look to Label you will see that it derives from ContentControl.

Content property is displayed by a ContentPresenter where in the docs it is said the following:

If there is a TypeConverter that converts the type of Content to a UIElement, the ContentPresenter uses that TypeConverter and the resulting UIElement is displayed.

Now there is a DateTimeConverter inheriting from TypeConverter, the following snippet produces exactly the same string than a Label does:

var dateTimeConverter = new DateTimeConverter();
var convertToString = dateTimeConverter.ConvertToString(DateTime.Now);

References:

https://msdn.microsoft.com/en-us/library/system.windows.controls.contentpresenter(v=vs.110).aspx

https://msdn.microsoft.com/en-us/library/system.componentmodel.datetimeconverter(v=vs.110).aspx