diff --git a/controllers/front/CategoryController.php b/controllers/front/CategoryController.php
index 607257ac1..1c19b244c 100644
--- a/controllers/front/CategoryController.php
+++ b/controllers/front/CategoryController.php
@@ -99,11 +99,15 @@ class CategoryControllerCore extends FrontController
         $dateFrom = Tools::getValue('date_from');
         $dateTo = Tools::getValue('date_to');
 
-        if ($dateFrom != '' && !Validate::isDate($dateFrom)) {
+        $currentTimestamp = strtotime(date('Y-m-d'));
+        $dateFromTimestamp = strtotime($dateFrom);
+        $dateToTimestamp = strtotime($dateTo);
+
+        if ($dateFrom != '' && (!$dateFromTimestamp || ($dateFromTimestamp < $currentTimestamp))) {
             Tools::redirect($this->context->link->getPageLink('pagenotfound'));
         }
 
-        if ($dateTo != '' && !Validate::isDate($dateTo)) {
+        if ($dateTo != '' && (!$dateToTimestamp || ($dateToTimestamp < $currentTimestamp))) {
             Tools::redirect($this->context->link->getPageLink('pagenotfound'));
         }
 
diff --git a/controllers/front/ProductController.php b/controllers/front/ProductController.php
index 997053ca9..70bb30678 100644
--- a/controllers/front/ProductController.php
+++ b/controllers/front/ProductController.php
@@ -92,11 +92,15 @@ class ProductControllerCore extends FrontController
         $dateFrom = Tools::getValue('date_from');
         $dateTo = Tools::getValue('date_to');
 
-        if ($dateFrom != '' && !Validate::isDate($dateFrom)) {
+        $currentTimestamp = strtotime(date('Y-m-d'));
+        $dateFromTimestamp = strtotime($dateFrom);
+        $dateToTimestamp = strtotime($dateTo);
+
+        if ($dateFrom != '' && (!$dateFromTimestamp || ($dateFromTimestamp < $currentTimestamp))) {
             Tools::redirect($this->context->link->getPageLink('pagenotfound'));
         }
 
-        if ($dateTo != '' && !Validate::isDate($dateTo)) {
+        if ($dateTo != '' && (!$dateToTimestamp || ($dateToTimestamp < $currentTimestamp))) {
             Tools::redirect($this->context->link->getPageLink('pagenotfound'));
         }
 
diff --git a/themes/hotel-reservation-theme/js/product.js b/themes/hotel-reservation-theme/js/product.js
index 9554e3d48..fc5b6c5a7 100644
--- a/themes/hotel-reservation-theme/js/product.js
+++ b/themes/hotel-reservation-theme/js/product.js
@@ -1237,8 +1237,8 @@ var BookingForm = {
 
         var data = {
             id_product: parseInt($('#product_page_product_id').val()),
-            date_from: $.datepicker.formatDate('yy-mm-dd', $.datepicker.parseDate('dd-mm-yy', $('#room_check_in').val())),
-            date_to: $.datepicker.formatDate('yy-mm-dd', $.datepicker.parseDate('dd-mm-yy', $('#room_check_out').val())),
+            date_from: $('#room_check_in').val(),
+            date_to: $('#room_check_out').val(),
             quantity: quantity,
             room_type_demands: JSON.stringify(getRoomsExtraDemands()),
         };