diff --git a/mirzaev/ebala/system/controllers/task.php b/mirzaev/ebala/system/controllers/task.php
index 065e38c..580ad44 100755
--- a/mirzaev/ebala/system/controllers/task.php
+++ b/mirzaev/ebala/system/controllers/task.php
@@ -443,7 +443,8 @@ final class task extends core
 				$link->task['start'] instanceof datetime
 				&& $link->task['end'] instanceof datetime
 			) {
-				$generated['hours'] = (float) $link->task['end']->diff($link->task['start'])->format('%H.%i');
+				$generated['hours'] = (float) $link->task['start']->diff($link->task['end'])->format('%R%H.%i');
+				if ($generated['hours'] < 0) $generated['hours'] += 24;
 				if ($generated['hours'] >= 6.5 && $generated['hours'] < 9) $generated['hours'] -= 0.5;
 				else if ($generated['hours'] >= 9 && $generated['hours'] < 12.5) $generated['hours'] -= 1;
 				else if ($generated['hours'] >= 12.5) $generated['hours'] -= 1.5;