Clock.Xamarin/Views/MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:xamarin="clr-namespace:Clock.Xamarin;assembly=Clock.Xamarin"
             x:Class="Clock.Xamarin.Views.MainPage">
    <ContentPage.Resources>
        <xamarin:DataProvider x:Key="ClockViewModel" ObjectType="Clock.ViewModels.IClockViewModel, Clock"/>
    </ContentPage.Resources>
    <StackLayout HorizontalOptions="Center" VerticalOptions="Center" BindingContext="{StaticResource ClockViewModel}">
        <!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
        <Label Text="{Binding It.Date}" />
        <!-- ReSharper disable once Xaml.BindingWithContextNotResolved -->
        <Label Text="{Binding It.Time}" />
    </StackLayout>
</ContentPage>