diff --git a/src/Controller/IllustrationController.php b/src/Controller/IllustrationController.php
index e24d4c1..7675311 100755
--- a/src/Controller/IllustrationController.php
+++ b/src/Controller/IllustrationController.php
@@ -59,7 +59,9 @@ class IllustrationController extends AbstractController
         // Initialisation de l'enregistrement
         $em = $this->getDoctrine()->getManager();
         $data = new Entity();
-        $data->setSubmittime(new DateTime());
+        
+        $nowWithMicroseconds = DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)));
+        $data->setSubmittime($nowWithMicroseconds);        
 
         // Permission
         if(!$this->getUser()->hasRole("ROLE_ADMIN")&&($by=="admin"||$by=="update")) {
@@ -82,9 +84,10 @@ class IllustrationController extends AbstractController
         
         // Sur validation
         if ($form->get('submit')->isClicked() && $form->isValid()) {  
-            $data = $form->getData();  
-            $data->setSubmittime(new \DateTime());
-            $data->setUpdatetime(new \DateTime());
+            $data = $form->getData();
+            $nowWithMicroseconds = DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)));
+            $data->setSubmittime($nowWithMicroseconds);        
+            $data->setUpdatetime($nowWithMicroseconds);
             $em->persist($data);
             $em->flush();
 
@@ -116,8 +119,9 @@ class IllustrationController extends AbstractController
         // Initialisation de l'enregistrement
         $em = $this->getDoctrine()->getManager();
         $data = new Entity();
-        $data->setSubmittime(new DateTime());
-
+        $nowWithMicroseconds = DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)));
+        $data->setSubmittime($nowWithMicroseconds);        
+        
         // Permission
         if(!$this->getUser()->hasRole("ROLE_ADMIN")&&($by=="admin"||$by=="update")) {
             return $this->redirectToRoute("app_home");
@@ -162,7 +166,8 @@ class IllustrationController extends AbstractController
         // Initialisation de l'enregistrement
         $em = $this->getDoctrine()->getManager();
         $data = new Entity();
-        $data->setSubmittime(new DateTime());
+        $nowWithMicroseconds = DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)));
+        $data->setSubmittime($nowWithMicroseconds);        
 
         // Permission
         if(!$this->getUser()->hasRole("ROLE_ADMIN")&&($by=="admin"||$by=="update")) {
@@ -191,8 +196,9 @@ class IllustrationController extends AbstractController
         // Initialisation de l'enregistrement
         $em = $this->getDoctrine()->getManager();
         $data = new Entity();
-        $data->setSubmittime(new \DateTime());
-        $data->setUpdatetime(new \DateTime());
+        $nowWithMicroseconds = DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)));
+        $data->setSubmittime($nowWithMicroseconds);        
+        $data->setUpdatetime($nowWithMicroseconds);
         $category=$em->getRepository(Category::class)->find($categoryid);
 
         // Permission
diff --git a/src/Entity/Illustration.php b/src/Entity/Illustration.php
index 87852cd..02b316f 100644
--- a/src/Entity/Illustration.php
+++ b/src/Entity/Illustration.php
@@ -30,12 +30,12 @@ class Illustration
     private $description;
 
     /**
-     * @ORM\Column(type="datetime")
+     * @ORM\Column(type="datetime", precision=6)
      */
     private $submittime;
 
     /**
-     * @ORM\Column(type="datetime")
+     * @ORM\Column(type="datetime", precision=6)
      */
     private $updatetime;
 
@@ -96,7 +96,6 @@ class Illustration
     public function setSubmittime(\DateTimeInterface $submittime): self
     {
         $this->submittime = $submittime;
-
         return $this;
     }