diff --git a/src/Controller/MonitoringApiController.php b/src/Controller/MonitoringApiController.php
index e321d44..852af0a 100644
--- a/src/Controller/MonitoringApiController.php
+++ b/src/Controller/MonitoringApiController.php
@@ -72,7 +72,7 @@ class MonitoringApiController extends AbstractController
             $line2['data'][] = 27;
             $line3['data'][] = 23;
 
-            $lightTime = (int) $entity->getDate()->format('gi');
+            $lightTime = (int) $entity->getDate()->format('Gi');
 
             if ($lightTime >= $lightOnAt && $lightTime <= $lightOffAt) {
                 $lightOn['data'][] = 5;
@@ -144,7 +144,7 @@ class MonitoringApiController extends AbstractController
             $line['data'][] = $entity->getValue();
             $line2['data'][] = 50;
 
-            $lightTime = (int) $entity->getDate()->format('gi');
+            $lightTime = (int) $entity->getDate()->format('Gi');
 
             if ($lightTime >= $lightOnAt && $lightTime <= $lightOffAt) {
                 $lightOn['data'][] = 10;