diff --git a/functions.php b/functions.php
index 8491809..7b84b80 100644
--- a/functions.php
+++ b/functions.php
@@ -1,7 +1,7 @@
 <?php
 
-function return_success() {
-	return json_encode(['status' => 'success', 'message' => 'OK']);
+function return_success($msg = 'OK') {
+	return json_encode(['status' => 'success', 'message' => $msg]);
 }
 
 function return_error($code, $msg) {
diff --git a/index.php b/index.php
index c5aac2e..013f405 100644
--- a/index.php
+++ b/index.php
@@ -10,6 +10,8 @@ use Twig\Loader\FilesystemLoader;
 $loader = new FilesystemLoader(__DIR__ . '/templates');
 $twig = new Environment($loader);
 
+setlocale(LC_ALL, 'de-DE');
+
 // --------------
 
 $dbconn = pg_connect($dbconnstring)
diff --git a/templates/index.html.twig b/templates/index.html.twig
index 8a0caef..9c743fa 100644
--- a/templates/index.html.twig
+++ b/templates/index.html.twig
@@ -5,17 +5,18 @@
 {% block content %}
 
 {% if tests is not empty %}
-<div>Test auswählen:</div>
-<table class="table">
+<h2 class="text-center">Test auswählen:</h2>
+
+<table class="table table-bordered w-auto mx-auto">
   <tbody>
  {% for test in tests %}
-    <tr><td><a href="test.php?id={{ test.id }}">{{ test.timestamp }}</td></tr>
+    <tr><td><a href="test.php?id={{ test.id }}">{{ test.timestamp | date('D j. M Y, H:i:s') }}</td></tr>
  {% endfor %}
   </tbody>
 </table>
 {% else %}
 <div class="bg-light p-3 rounded mt-3">
-<pre class="mb-0">Keine Tests gefunden.</pre>
+  <pre class="mb-0">Keine Tests gefunden.</pre>
 </div>
 {% endif %}
 
diff --git a/webhook.php b/webhook.php
index 4d15651..d0b41dc 100644
--- a/webhook.php
+++ b/webhook.php
@@ -63,7 +63,9 @@ function test_finished() {
 		or die(return_error(500, 'connect Datenbankfehler: ' . pg_last_error()));
 
 	$query = "INSERT INTO tests VALUES (DEFAULT, $1, $2) RETURNING id";
-	$values = [ date('Y-m-d H:i:s'), json_encode($data) ];
+
+	$date = $data['test']['data']['temperatureSamples'][0]['time'];
+	$values = [ $date, json_encode($data) ];
 
 	$rc = pg_query_params($dbconn, $query, $values);