diff --git a/frontend/views/catalog/product.php b/frontend/views/catalog/product.php
index 57735e2..244a88d 100755
--- a/frontend/views/catalog/product.php
+++ b/frontend/views/catalog/product.php
@@ -197,7 +197,7 @@ use frontend\assets\FlipclockAsset;
                                                 },
                                             });
 
-                                            clock.setTime( ".strtotime($event->end_at) - strtotime(date('Y-m-d H:i:s')).");
+                                            clock.setTime( ".(strtotime($event->end_at) - strtotime(date('Y-m-d H:i:s'))).");
                                             clock.setCountdown(true);
                                             clock.start();
                                             ";
diff --git a/frontend/views/event/_objects.php b/frontend/views/event/_objects.php
index d6c967c..f25b9ef 100755
--- a/frontend/views/event/_objects.php
+++ b/frontend/views/event/_objects.php
@@ -41,7 +41,7 @@ FlipclockAsset::register($this);
                         },
                     });
 
-                    clock.setTime(".strtotime($model->end_at) - strtotime(date('Y-m-d H:i:s')).");
+                    clock.setTime(".(strtotime($model->end_at) - strtotime(date('Y-m-d H:i:s'))).");
                     clock.setCountdown(true);
                     clock.start();";
                     $this->registerJs($js,View::POS_END) ?>
diff --git a/frontend/views/event/show.php b/frontend/views/event/show.php
index 6cac390..77f0e5e 100755
--- a/frontend/views/event/show.php
+++ b/frontend/views/event/show.php
@@ -46,7 +46,7 @@ $this->params['seo']['h1'] = $this->title;
                             },
                         });
 
-                    clock.setTime(".strtotime($model->end_at) - strtotime(date('Y-m-d H:i:s')).");
+                    clock.setTime(".(strtotime($model->end_at) - strtotime(date('Y-m-d H:i:s'))).");
                     clock.setCountdown(true);
                     clock.start();";
             $this->registerJs($js,View::POS_END) ?>
diff --git a/frontend/widgets/views/slider.php b/frontend/widgets/views/slider.php
index 993a1f4..3e392d7 100755
--- a/frontend/widgets/views/slider.php
+++ b/frontend/widgets/views/slider.php
@@ -36,7 +36,7 @@ FlipclockAsset::register($this);
                         },
                     });
 
-                    clock.setTime(".strtotime($image->end_at) - strtotime(date('Y-m-d H:i:s')).");
+                    clock.setTime(".(strtotime($image->end_at) - strtotime(date('Y-m-d H:i:s'))).");
                     clock.setCountdown(true);
                     clock.start();";
         $this->registerJs($js,View::POS_END) ?>
--
libgit2 0.21.4