Creating Overrides the mod_jfslideshow Module, copy:
PATH_TO_JOOMLA/modules/mod_jfslideshow/tmpl/bgslideshow.php
to
TEMPLATE_NAME/html/mod_jfslideshow/bgslideshow.php
Then edit this file, modify:
$description = '<div class="container slidedescription"><h3>'.$dateEvent.'</h3><p>'.$locationEvent.'</p><div id="clock">'.date("Y/m/d", strtotime($dateEvent)).'</div>';
to:
$description = '<div class="container slidedescription"><h3>'.date("d/m/Y", strtotime($dateEvent)).'</h3><p>'.$locationEvent.'</p><div id="clock">'.date("Y/m/d", strtotime($dateEvent)).'</div>';
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