Supported date formats for sorting

Question

Can someone point me to a document describing the supported
date formats for sorting? I mean, how should I format a date column
in an XML dataset in order to have this column correctly sorted
using the Spry framework?
Thank you and sorry if the question is trivial.

Answer 1

Thanks, what I have done for the moment as a temporary
solution is to use the two date formats and have them both inside
the one cell in the table (the column for the sortable date
yyyy-mm-dd). In my CSS I have created a style for the first date
that has it's visibility as hidden. That way it's sorting the Date1
but only Date2 is being shown to the users as the other cells have
more than one line of text it doesn't look too off centre.
<div spry:region="ds2">
<table width="662">
<tr>
<th width="127" class="eventhead"
spry:sort="Date1">Date</th>
<th width="151" class="eventhead"
spry:sort="Type">Type</th>
<th width="146" class="eventhead"
spry:sort="Title">Title</th>
<th width="189" class="eventhead"
spry:sort="Venue">Venue</th>
</tr>
<tr spry:repeat="ds2" spry:setrow="ds2">
<td height="53" class="event">{Date2}<span
class="eventhide">{Date1}</span></td>
<td class="event">{Type}</td>
<td class="event">{Title}</td>
<td class="event">{Venue}</td>
</tr>
</table>
</div>
</div>
It seems to be working for the moment...