diff --git a/app/common.php b/app/common.php
index 3526e80..83ae061 100644
--- a/app/common.php
+++ b/app/common.php
@@ -167,17 +167,17 @@ if (!function_exists('get_time_difference_str')) {
                     );
             }
             if (!empty($difference['hours']) || !empty($value)) {
-                $value .= $difference['hours'] . $str . __(
+                $value .= $str . $difference['hours'] . $str . __(
                         'controller.parking_space.hours'
                     );
             }
             if (!empty($difference['minutes']) || !empty($value)) {
-                $value .= $difference['minutes'] . $str . __(
+                $value .= $str . $difference['minutes'] . $str . __(
                         'controller.parking_space.minutes'
                     );
             }
             if (!empty($difference['seconds']) || !empty($value)) {
-                $value .= $difference['seconds'] . $str . __(
+                $value .= $str . $difference['seconds'] . $str . __(
                         'controller.parking_space.seconds'
                     );
             }
@@ -222,7 +222,7 @@ if (!function_exists('get_minutes')) {
                         'controller.parking_space.minutes'
                     );
                 $hoursStr = $hours . $str . __('controller.parking_space.hours');
-                return $hoursStr . $minutesStr;
+                return $hoursStr . $str . $minutesStr;
             }
         }
     }