diff --git a/app/Http/Controllers/ProjectController.php b/app/Http/Controllers/ProjectController.php
index 6e8ca66..43dadf9 100644
--- a/app/Http/Controllers/ProjectController.php
+++ b/app/Http/Controllers/ProjectController.php
@@ -349,6 +349,25 @@ class ProjectController extends Controller
 		return response()->json(['status'=>'success','code'=>200, 'data' => $data], 200);
 	}
 
+	public static function setSyncDate($activity_id, $activity, $report) {
+		$status = ReportActivityMaterial::select('description')->where('activity_id', $activity_id)->first();
+		if (isset($status) && $status != 'done') {
+			$minDate = date_create($report->report_date);
+			$maxDate = date_create($report->report_date);
+			date_add($maxDate, date_interval_create_from_date_string($activity->duration . " days"));
+		} else {
+			$material = AssignMaterial::where('activity_id', $activity_id)->first();
+			$minDate = $material->start_activity;
+			$maxDate = $material->finish_activity;
+		}
+		$reports = array(
+			'activity_id' => $activity_id,
+			'min_date' => $minDate,
+			'max_date' => $maxDate
+		);
+		return $reports;
+	}
+
   public function synchronizeReport($gantt_id)
 	{
 		$activities = Activity::where("version_gantt_id", $gantt_id)->get();
@@ -360,21 +379,12 @@ class ProjectController extends Controller
 			if ($countReports === 1) {
 				$dataReports = ReportActivityMaterial::where('activity_id', $activity_id)->orderBy('report_date')->get();
 				foreach($dataReports as $dr) {
-					$reports[] = array(
-						'activity_id'=>$activity_id,
-						'min_date'=>$dr->report_date,
-						'max_date'=>date_modify(date_create($dr->report_date), "1 days")
-					);
+					$reports[] = ProjectController::setSyncDate($activity_id, $activity, $dr);
 				}
 			}
 			if ($countReports > 1) {
 				$firstReport = ReportActivityMaterial::where('activity_id', $activity_id)->orderBy('report_date')->first();
-				$lastReport = ReportActivityMaterial::where('activity_id', $activity_id)->orderByDesc('report_date')->first();
-				$reports[] = array(
-					'activity_id'=>$activity_id,
-					'min_date'=>$firstReport->report_date,
-					'max_date'=>date_modify(date_create($lastReport->report_date), "1 days")
-				);
+				$reports[] = ProjectController::setSyncDate($activity_id, $activity, $firstReport);
 			}
 			$activity->reports = $reports;
 		}
@@ -383,8 +393,16 @@ class ProjectController extends Controller
 
 		for ($i=0; $i < count($reports); $i++) {
 			$activity = Activity::find($reports[$i]['activity_id']);
+			$successor = Link::where('t_activity_id', $activity->id)->first();
+			if ($successor) {
+				$predecessor = Activity::find($successor->s_activity_id);
+				$activity->start_date = $predecessor->end_date;
+				$reports[$i]['max_date']->modify('1 day');
+			} else {
+				$reports[$i]['max_date']->modify('-1 day');
+			}
 			$activity->start_date = $reports[$i]['min_date'];
-			$activity->end_date = $reports[$i]['max_date'];
+			$activity->end_date = $reports[$i]['max_date']->setTime(23,59,59);
 			$activity->save();
 		}