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 33d1fe2..086d4f0 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
@@ -1,8 +1,9 @@
 package com.eactive.eai.rms.ext.djb.job;
 
 import java.time.LocalDate;
-import java.time.LocalTime;
+import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.time.temporal.ChronoUnit;
 
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
@@ -28,7 +29,8 @@ import com.eactive.eai.rms.data.entity.onl.kjb.statistics.QApiStatsHour;
 /**
  * API 로그 테이블을 시간별 통계로 집계하는 배치 작업
  * TSEAILGXX → API_STATS_HOUR
- * 실행 주기: 매시 00:10 (당일 데이터 집계)
+ * 실행 주기: 매시 00:10, 직전 1시간(예: 14:10 실행 시 13:00~13:59:59) 데이터만 집계
+ * (0시대 실행 시 전날 23:00~23:59:59 집계)
  */
 @Component
 public class ApiStatsHourlyAggregationJob implements Job {
@@ -59,11 +61,9 @@ public class ApiStatsHourlyAggregationJob implements Job {
 		DataSourceType dataType = DataSourceTypeManager.getDataSourceType(DataSourceTypeManager.APIGW);
 		DataSourceContextHolder.setDataSourceType(dataType);
 		try {
-			LocalDate targetDate = LocalDate.now();
-			if (LocalTime.now().isBefore(LocalTime.of(1, 0))) {
-				targetDate = targetDate.minusDays(1);
-			}
-			selfJob.executeManual(targetDate);
+			// 직전 1시간(예: 14:10 실행 -> 13:00~13:59:59). 0시대 실행 시 자동으로 전날 23시로 롤오버됨
+			LocalDateTime targetHour = LocalDateTime.now().minusHours(1).truncatedTo(ChronoUnit.HOURS);
+			selfJob.executeManual(targetHour);
 		} catch (Exception e) {
 			throw new JobExecutionException(e);
 		} finally {
@@ -72,22 +72,38 @@ public class ApiStatsHourlyAggregationJob implements Job {
 	}
 
 	/**
-	 * 수동 실행 메서드 (날짜 지정)
+	 * 수동 실행 메서드 (날짜 지정, 하루 전체 재집계 - 관리자 화면 백필용)
 	 */
 	@Transactional
 	public int executeManual(LocalDate targetDate) {
+		LocalDateTime rangeStart = targetDate.atStartOfDay();
+		return aggregate(rangeStart, rangeStart.plusDays(1));
+	}
+
+	/**
+	 * 수동/스케줄 실행 메서드 (시각 지정, 해당 시각이 속한 1시간만 집계)
+	 */
+	@Transactional
+	public int executeManual(LocalDateTime targetHour) {
+		LocalDateTime rangeStart = targetHour.truncatedTo(ChronoUnit.HOURS);
+		return aggregate(rangeStart, rangeStart.plusHours(1));
+	}
+
+	private int aggregate(LocalDateTime rangeStart, LocalDateTime rangeEnd) {
 		long startTime = System.currentTimeMillis();
-		log.info("=== 시간별 통계 집계 작업 시작 === 대상: {}", targetDate);
+		log.info("=== 시간별 통계 집계 작업 시작 === 대상: {} ~ {}", rangeStart, rangeEnd);
 
-		String searchDate = targetDate.format(DateTimeFormatter.ofPattern("yyyyMMdd"));
-		String logTableName = CommonUtil.getLogTable(searchDate, true);
+		DateTimeFormatter tsFormat = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
+		String logTableName = CommonUtil.getLogTable(rangeStart.format(DateTimeFormatter.ofPattern("yyyyMMdd")), true);
+		String rangeStartStr = rangeStart.format(tsFormat) + "000";
+		String rangeEndStr = rangeEnd.format(tsFormat) + "000";
 
-		// 1. 기존 데이터 삭제
+		// 1. 대상 구간(rangeStart ~ rangeEnd)의 기존 데이터만 삭제 (다른 시간대 데이터는 보존)
 		QApiStatsHour q = QApiStatsHour.apiStatsHour;
 		long deletedCount = apiStatsHourService.getJPAQueryFactory()
 				.delete(q)
-				.where(q.statTime.goe(targetDate.atStartOfDay())
-					.and(q.statTime.lt(targetDate.plusDays(1).atStartOfDay())))
+				.where(q.statTime.goe(rangeStart)
+					.and(q.statTime.lt(rangeEnd)))
 				.execute();
 		log.info("기존 데이터 삭제: {} 건", deletedCount);
 
@@ -130,14 +146,15 @@ public class ApiStatsHourlyAggregationJob implements Job {
 				"             , MAX(CASE WHEN LOGPRCSSSERNO = '400' THEN LOGPRCSSSERNO ELSE '' END) AS E400" +
 				"             , MAX(EAIERRCD) AS ERROR_CODE" +
 				"         FROM " + logTableName +
-				"         WHERE MSGDPSTYMS LIKE :searchDate || '%'" +
+				"         WHERE MSGDPSTYMS >= :rangeStart AND MSGDPSTYMS < :rangeEnd" +
 				"         GROUP BY EAISVCSERNO" +
 				"       ) A LEFT OUTER JOIN TSEAICM20 B ON A.ERROR_CODE = B.CODE AND B.CODEGROUP = 'ERRCODE_TIMEOUT' AND B.USEYN = 'Y' " +
 				"  GROUP BY SUBSTR(DT,1,10), API_NAME, GW_INSTANCE_ID, BIZ_DIV_CODE, NVL(A.CLIENT_ID, 'NONE')" +
 				"         , INBOUND_ADAPTER, OUTBOUND_ADAPTER";
 
 		int savedCount = entityManager.createNativeQuery(sql)
-				.setParameter("searchDate", searchDate)
+				.setParameter("rangeStart", rangeStartStr)
+				.setParameter("rangeEnd", rangeEndStr)
 				.executeUpdate();
 
 		long elapsedTime = System.currentTimeMillis() - startTime;