I found here, the solution at the display date problem, when using WordPress with qTranslate, a plugin to write and using post in several languages.

* Before: %A %e %B %Y
* After: Thursday August 1st, 2013

There is still a problem in chinese, the date is wrote in english.

There only to replace the double % in the <code>wp-content/plugins/qtranslate-*/qtranslate_utils.php</code> file

$strftime_parameters[] = '%%';

by a single one

$strftime_parameters[] = '%';