2
In language\yourlang\global.php search
define("_DATESTRING","j/n/Y G:i:s");
define("_MEDIUMDATESTRING","j/n/Y G:i");
define("_SHORTDATESTRING","j/n/Y");
Replace with this
define("_DATESTRING","n/j/Y G:i:s");
define("_MEDIUMDATESTRING","n/j/Y G:i");
define("_SHORTDATESTRING","n/j/Y");