diff --git a/xumu.py b/xumu.py
index 664a67b..a8aa38e 100644
--- a/xumu.py
+++ b/xumu.py
@@ -344,7 +344,16 @@ async def past_seven_days(deviceId):
             "sql": sql
         }
         r = requests.post(baseHost + queryUri, headers=headers, json=send_json)
-        return BaseResponse(data=r.json())
+        data = r.json()
+        timestamps = data["timestamps"]
+        times = []
+        for timestamp in timestamps:
+            dt = datetime.fromtimestamp(timestamp / 1000)  # 因为时间戳是以毫秒为单位的，所以需要除以1000
+            # 将datetime对象格式化为只包含年月日的字符串
+            year_month_day_str = dt.strftime('%Y-%m-%d')
+            times.append(year_month_day_str)
+        data["timestamps"] = times
+        return BaseResponse(data=data)
     except Exception as e:
         return BaseResponse(code=500, msg=str(e))