diff --git a/src/Actions/DiffDaysAction.php b/src/Actions/DiffDaysAction.php
new file mode 100644
index 0000000000000000000000000000000000000000..c3ee3c28a3e86c759e6627eb79b4fbcc9f4f4fa7
--- /dev/null
+++ b/src/Actions/DiffDaysAction.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Actions;
+
+use DateTimeImmutable;
+
+class DiffDaysAction
+{
+    /**
+     * Вернет кол-во дней между датами
+     * @param DateTimeImmutable $dateStart дата начала
+     * @param DateTimeImmutable $dateEnd дата окончания
+     * @return int
+     * */
+    public function act(
+        DateTimeImmutable $dateStart,
+        DateTimeImmutable $dateEnd
+    ): int {
+        return (int) $dateStart->diff($dateEnd)->format('%a');
+    }
+}
diff --git a/src/Controller/DiffDaysController.php b/src/Controller/DiffDaysController.php
new file mode 100644
index 0000000000000000000000000000000000000000..7dc8cd80893a2738cbc5eec8998572c3bee67e7c
--- /dev/null
+++ b/src/Controller/DiffDaysController.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Controller;
+
+use App\Actions\DiffDaysAction;
+use App\Requests\DiffDaysRequest;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+
+class DiffDaysController extends AbstractController
+{
+    /**
+     * Контроллер вернет кол-во дней между датами
+     * @param DiffDaysRequest $request
+     * @param DiffDaysAction $action
+     * @return Response
+     */
+    #[Route('/diff/days', name: 'app_diff_days', methods: ['POST'])]
+    public function index(DiffDaysRequest $request, DiffDaysAction $action): Response
+    {
+        $array = $request->serialise();
+        return new JsonResponse($action->act($array['startDate'], $array['endDate']));
+    }
+}
diff --git a/src/Requests/DiffDaysRequest.php b/src/Requests/DiffDaysRequest.php
new file mode 100644
index 0000000000000000000000000000000000000000..95295fd7bba664592cb6358dac546176dd9d6ea7
--- /dev/null
+++ b/src/Requests/DiffDaysRequest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Requests;
+
+use DateTimeImmutable;
+use Symfony\Component\Validator\Constraints\Date;
+use Symfony\Component\Validator\Constraints\NotBlank;
+
+class DiffDaysRequest extends BaseRequest
+{
+    #[Date]
+    #[NotBlank]
+    public $startDate;
+
+    #[Date]
+    #[NotBlank]
+    public $endDate;
+
+    /**
+     * @return mixed
+     */
+    public function serialise(): mixed
+    {
+        return [
+            'startDate' => new DateTimeImmutable($this->startDate),
+            'endDate' => new DateTimeImmutable($this->endDate),
+        ];
+    }
+}
\ No newline at end of file