diff --git a/task/summary3.py b/task/summary3.py
index 38e9062..1effa59 100644
--- a/task/summary3.py
+++ b/task/summary3.py
@@ -135,6 +135,8 @@ class Summary3(Task):
 
     # 处理天游标
     def get_cursor(self):
+        if not self.cursor_st:
+            self.cursor_st = self.task_info.get('cursor_et')
         if not self.cursor_st:
             self.cursor_st = int(time.time()) - 86400
         super().get_cursor()