diff --git a/src/main/java/com/supwisdom/dlpay/atte/service/impl/AtteClassServiceImpl.java b/src/main/java/com/supwisdom/dlpay/atte/service/impl/AtteClassServiceImpl.java
index 6eefff5..123a115 100644
--- a/src/main/java/com/supwisdom/dlpay/atte/service/impl/AtteClassServiceImpl.java
+++ b/src/main/java/com/supwisdom/dlpay/atte/service/impl/AtteClassServiceImpl.java
@@ -294,7 +294,7 @@
         String stime=DateUtil.getNow("yyyyMMdd")+starttime;
         String etime=DateUtil.getNow("yyyyMMdd")+endtime;
         long diff=DateUtil.getInterval(stime,etime); // 毫秒
-        int min= (int) (diff/(1000*60));
+        int min= (int) (diff/(1000)); //秒
             return min;
     }