Hello,

Thank you for posting in our forums!

You can format any DateTime using the StringFormat property in a Binding.

For example, to display the date time as you require in the XamSliderDateTimeThumbs, you would need to re-template the ToolTip like so:

<Style TargetType="{x:Type ig:XamSliderDateTimeThumb}">
    <Setter Property="ToolTipTemplate">
        <Setter.Value>
            <DataTemplate>
                <TextBlock Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type ig:XamSliderDateTimeThumb}}, Path=Value, StringFormat='dd/MM/yyyy HH:mm'}"></TextBlock>
            </DataTemplate>
        </Setter.Value>
    </Setter>
</Style>

If you need further assistance with this, please let me know and I will be glad to help.