diff --git a/Framework/Requete.php b/Framework/Requete.php
index f8d9495..9cc2b4d 100755
--- a/Framework/Requete.php
+++ b/Framework/Requete.php
@@ -51,15 +51,17 @@ class Requete
 	public function getParametreDate($date)
     {
         if ($this->existeParametre($date)) {
-            // Format selon la langue : anglais = m/j/Y, autres = j/m/Y
-            $format = (isset($_SESSION['lang']) && $_SESSION['lang'] == "en_US") 
-                    ? 'm/j/Y' 
-                    : 'j/m/Y';
+            $lang = $_SESSION['lang'] ?? 'fr';
+            
+            // Couvre "en", "en_US", "en_GB", etc.
+            $format = str_starts_with(strtolower($lang), 'en') 
+                    ? 'm/d/Y'  // Anglais : MM/JJ/AAAA
+                    : 'j/m/Y'; // Français : JJ/MM/AAAA
             
             $d = DateTime::createFromFormat($format, $this->parametres[$date]);
             
             if ($d === false) {
-                return "0001-01-01"; // Sécurité si le parsing échoue
+                return "0001-01-01";
             }
             
             return $d->format('Y-m-d');