diff --git a/app/api/controller/TeacherFreeTimeController.php b/app/api/controller/TeacherFreeTimeController.php
index 9d59109..3df52fb 100644
--- a/app/api/controller/TeacherFreeTimeController.php
+++ b/app/api/controller/TeacherFreeTimeController.php
@@ -33,6 +33,13 @@ class TeacherFreeTimeController extends BaseController
         return $this->json($res);
     }
 
+    public function updateFreeTime(Request $request)
+    {
+        $service = new TeacherFreeTimeService();
+        $res = $service->updateFreeTime($request);
+        return $this->json($res);
+    }
+
     /**
      * @desc 删除空闲时间
      * @param Request $request
diff --git a/app/common/service/TeacherFreeTimeService.php b/app/common/service/TeacherFreeTimeService.php
index 60216cc..f1ad4b7 100644
--- a/app/common/service/TeacherFreeTimeService.php
+++ b/app/common/service/TeacherFreeTimeService.php
@@ -164,6 +164,58 @@ class TeacherFreeTimeService
         }
     }
 
+    public function updateFreeTime($request)
+    {
+        try {
+            $teacher_free_time = TeacherFreeTime::where(['id' => $request->post('free_time_id')])->findOrEmpty();
+            if ($teacher_free_time->isEmpty()) {
+                throw new Exception('未找到数据');
+            }
+
+            $data = $request->post();
+
+            if (empty($data['free_time'])) {
+                throw new Exception('请选择时间后提交');
+            }
+
+            $free_time = json_decode($data['free_time'], true);
+
+            $free_time = json_decode($free_time['free_time'], true)[0];
+
+
+            $free_date = $free_time['day'];
+            $time = $free_time['times'][0]['zh'];
+            $en_time = $free_time['times'][0]['en'];
+            $time_period = explode('-', $time);
+            $en_time_period = explode('-', $en_time);
+            $firstDate = new DateTime($free_date . ' ' . trim($time_period[0]));
+            $secondDate = new DateTime($free_date . ' ' . trim($time_period[1]));
+            $diff = $secondDate->diff($firstDate);
+            $h = $diff->h;
+            $m = round($diff->i / 60, 2);
+            $hour = round($h + $m, 2);
+            $time = $time_period[0] . ' - ' . $time_period[1];
+
+            $teacher_free_time->save([
+                'date' => $free_date,
+                'time' => $time,
+                'hour' => $hour,
+                'en_time' => implode(' - ', $en_time_period),
+            ]);
+
+            return [
+                'code' => ResponseCode::SUCCESS,
+                'msg' => '操作成功'
+            ];
+
+        }catch (Exception $e){
+            return [
+                'code' => ResponseCode::FAIL,
+                'msg' => $e->getMessage()
+            ];
+        }
+    }
+
     /**
      * @desc 删除空闲时间
      * @param $request