diff --git a/hiatmp-base/src/main/java/com/hisense/hiatmp/base/controller/HighDangerController.java b/hiatmp-base/src/main/java/com/hisense/hiatmp/base/controller/HighDangerController.java
index 7034059..ce9e269 100644
--- a/hiatmp-base/src/main/java/com/hisense/hiatmp/base/controller/HighDangerController.java
+++ b/hiatmp-base/src/main/java/com/hisense/hiatmp/base/controller/HighDangerController.java
@@ -71,8 +71,9 @@ public class HighDangerController {
             Date pcEndTime = base.getPcEndTime();
             if(pcEndTime != null){
                 long diff = nowDate.getTime() - pcEndTime.getTime();
+                // 时间差
                 long diffDays = diff / (24 * 60 * 60 * 1000);
-                // 定义日期格式
+                diffDays = Math.abs(diffDays);
 
                 int comparison = nowDate.compareTo(pcEndTime);
                 if(comparison < 0) { // 超期