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copied!<p>Even if you could declare DateTime.Now in Silverlight's XAML (since you can in WPF - <a href="http://soumya.wordpress.com/2010/02/12/wpf-simplified-part-11-xaml-tricks/" rel="nofollow noreferrer">http://soumya.wordpress.com/2010/02/12/wpf-simplified-part-11-xaml-tricks/</a>), you have the issue that your time won't update. If you use a local timer that updates on the second you can ensure that your time will update as well.</p> <pre><code>public class LocalTimer : INotifyPropertyChanged { private DispatcherTimer timer; public LocalTimer() { timer = new DispatcherTimer(); timer.Interval = TimeSpan.FromSeconds(1.0); timer.Tick += new EventHandler(TimerCallback); this.TimeFormat = "hh:mm:ss"; this.DateFormat = "dddd, MMMM dd"; } private void TimerCallback(object sender, EventArgs e) { PropertyChanged(this, new PropertyChangedEventArgs("FormattedDate")); PropertyChanged(this, new PropertyChangedEventArgs("FormattedTime")); } public bool Enabled { get { return this.timer.IsEnabled; } set { if (value) this.timer.Start(); else this.timer.Stop(); } } public string FormattedDate { get { return DateTime.Now.ToString(this.DateFormat); } set {} } public string FormattedTime { get { return DateTime.Now.ToString(this.TimeFormat); } set{} } public string TimeFormat { get; set; } public string DateFormat { get; set; } #region INotifyPropertyChanged Members public event PropertyChangedEventHandler PropertyChanged; #endregion } </code></pre> <p>Declare an instance of this in xaml ala:</p> <pre><code><local:LocalTimer x:Key="theTime" Enabled="True" /> </code></pre> <p>and use the binding to ensure that your time is always reflected.</p> <pre><code><TextBlock Text="{Binding Source={StaticResource theTime}, Path=FormattedDate, Mode=OneWay}" x:Name="TodaysDate" /> <TextBlock Text="{Binding Source={StaticResource theTime}, Path=FormattedTime, Mode=OneWay}" x:Name="CurrentTime" /> </code></pre>

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