diff --git a/jeecg-module-main/src/main/java/org/jeecg/modules/kc/jiaoshi/controller/KcZhihuijiaoshiController.java b/jeecg-module-main/src/main/java/org/jeecg/modules/kc/jiaoshi/controller/KcZhihuijiaoshiController.java
index 224e668f..8390924c 100644
--- a/jeecg-module-main/src/main/java/org/jeecg/modules/kc/jiaoshi/controller/KcZhihuijiaoshiController.java
+++ b/jeecg-module-main/src/main/java/org/jeecg/modules/kc/jiaoshi/controller/KcZhihuijiaoshiController.java
@@ -151,7 +151,7 @@ public class KcZhihuijiaoshiController extends JeecgController<KcZhihuijiaoshi,
 		 Set<String> nextKcJieciSet = Sets.newHashSet();
 		 kcJieciList.forEach(x -> {
 			 JieciIntTime jieciIntTime = new JieciIntTime();
-			 jieciIntTime.setKsTime(Integer.parseInt(x.getHhks())+30);//提前30分钟
+			 jieciIntTime.setKsTime(Integer.parseInt(x.getHhks())-30);//提前30分钟
 			 jieciIntTime.setJsTime(Integer.parseInt(x.getHhjs()));
 
 			 if(jieciIntTime.getKsTime() <= nowTimeNum && nowTimeNum <= jieciIntTime.getJsTime()){