diff --git a/src/main/java/com/eactive/eai/rms/ext/djb/job/ApiStatsHourlyAggregationJob.java b/src/main/java/com/eactive/eai/rms/ext/djb/job/ApiStatsHourlyAggregationJob.java
index 086d4f0..2c5dc07 100644
--- a/src/main/java/com/eactive/eai/rms/ext/djb/job/ApiStatsHourlyAggregationJob.java
+++ b/src/main/java/com/eactive/eai/rms/ext/djb/job/ApiStatsHourlyAggregationJob.java
@@ -139,9 +139,9 @@ public class ApiStatsHourlyAggregationJob implements Job {
 				"             , MAX(CASE WHEN LOGPRCSSSERNO = '100' THEN PSVSYSADPTRBZWKGROUPNAME ELSE '' END) AS OUTBOUND_ADAPTER" +
 				"             , MIN(MSGDPSTYMS) AS DT" +
 				"             , ( (TO_DATE(SUBSTR(MAX(MSGPRCSSYMS),1,14),'YYYYMMDDHH24MISS')" +
-				"                  - TO_DATE(SUBSTR(MIN(MSGDPSTYMS),1,14),'YYYYMMDDHH24MISS')) * 86400000" +
+				"                  - TO_DATE(SUBSTR(MIN(MSGPRCSSYMS),1,14),'YYYYMMDDHH24MISS')) * 86400000" +
 				"                + TO_NUMBER(SUBSTR(MAX(MSGPRCSSYMS),15,3))" +
-				"                - TO_NUMBER(SUBSTR(MIN(MSGDPSTYMS),15,3))" +
+				"                - TO_NUMBER(SUBSTR(MIN(MSGPRCSSYMS),15,3))" +
 				"               ) AS RESP_TIME" +
 				"             , MAX(CASE WHEN LOGPRCSSSERNO = '400' THEN LOGPRCSSSERNO ELSE '' END) AS E400" +
 				"             , MAX(EAIERRCD) AS ERROR_CODE" +