When sorting a table, cells containing a <time> tag should be considered as a date instead of text.
If the tag contain a datime attribute it should be used to determine the date (ISO format), otherwise the cell content should be used (ISO too if it follow HTML5 standard)
Example of valid time tag :
<time datetime="2016-11-07">Monday, November 7, 2016</time>
<time>2016-11-07</time>