How to format date and time in XAML in Xamarin application

I have a set up XAML code below.

<Label Text="{Binding Date}"></Label>
<Label Text="{Binding Time}'}"></Label>

I want result like september 12,2014 2:30 PM.

Change your code to:

<Label Text="{Binding Date, StringFormat='{0:MMMM dd, yyyy}'}"></Label>
<Label Text="{Binding Time, StringFormat='{}{0:hh\\:mm}'}"></Label>

Make a custom IValueConverter implementation:

public class DatetimeToStringConverter : IValueConverter
{
    #region IValueConverter implementation

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (value == null)
            return string.Empty;

        var datetime = (DateTime)value;
        //put your custom formatting here
        return datetime.ToLocalTime().ToString("g");
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException(); 
    }

    #endregion
}

Then use it like that:

<ResourceDictionary>
    <local:DatetimeToStringConverter x:Key="cnvDateTimeConverter"></local:DatetimeToStringConverter>
</ResourceDictionary>

...

<Label Text="{Binding Date, Converter={StaticResource cnvDateTimeConverter}}"></Label>
<Label Text="{Binding Time, Converter={StaticResource cnvDateTimeConverter}}"></Label>

<Label>

<Label.FormattedText>

<FormattedString>

<Span Text="{Binding Date, StringFormat='{0:MMMM dd, yyyy}'}"/>
<Span Text=" "/>
<Span Text="{Binding Time, StringFormat='{0:h:mm tt}'}"/>

</FormattedString>

</Label.FormattedText>

</Label>

Use the standard .NET Date Format specifiers.

To get

September 12, 2014 2:30 PM

use something like

MMMM d, yyyy h:mm tt