diff --git a/jeecg-module-web-statistics/src/main/java/org/jeecg/modules/service/impl/GardsSampleDataWebServiceImpl.java b/jeecg-module-web-statistics/src/main/java/org/jeecg/modules/service/impl/GardsSampleDataWebServiceImpl.java
index 42441e06..a0fc5ab8 100644
--- a/jeecg-module-web-statistics/src/main/java/org/jeecg/modules/service/impl/GardsSampleDataWebServiceImpl.java
+++ b/jeecg-module-web-statistics/src/main/java/org/jeecg/modules/service/impl/GardsSampleDataWebServiceImpl.java
@@ -1181,7 +1181,7 @@ public class GardsSampleDataWebServiceImpl extends ServiceImpl<GardsSampleDataWe
                 //采集开始时间转为字符串
                 String collectStartStr = collectStart.toString();
                 //截取采集开始时间的年月日小时
-                collectStartStr = collectStartStr.substring(0, 14) + ":00:00";
+                collectStartStr = collectStartStr.substring(0, collectStartStr.indexOf(StringPool.COLON)) + ":00:00";
                 //如果采集时间包含当前日期 则正常的读取数据并存入数组
                 if (dayTime.equals(collectStartStr)) {
                     collectStartList.add(collectStart.toString());