diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataEntity.java
index 3a0886fe..ec6d8925 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataEntity.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataEntity.java
@@ -51,14 +51,14 @@ public class MapSheetAnalDataEntity {
   private String dataCrsTypeName;
 
   @ColumnDefault("now()")
-  @Column(name = "created_dttm")
+  @Column(name = "created_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE DEFAULT now()")
   private ZonedDateTime createdDttm;
 
   @Column(name = "created_uid")
   private Long createdUid;
 
   @ColumnDefault("now()")
-  @Column(name = "updated_dttm")
+  @Column(name = "updated_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE DEFAULT now()")
   private ZonedDateTime updatedDttm;
 
   @Column(name = "updated_uid")
@@ -79,13 +79,13 @@ public class MapSheetAnalDataEntity {
   private String dataState;
 
   @ColumnDefault("now()")
-  @Column(name = "data_state_dttm")
+  @Column(name = "data_state_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE DEFAULT now()")
   private ZonedDateTime dataStateDttm;
 
-  @Column(name = "anal_strt_dttm")
+  @Column(name = "anal_strt_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime analStrtDttm;
 
-  @Column(name = "anal_end_dttm")
+  @Column(name = "anal_end_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime analEndDttm;
 
   @Column(name = "anal_sec")
diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataGeomEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataGeomEntity.java
index 362d7b86..89254787 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataGeomEntity.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetAnalDataGeomEntity.java
@@ -60,13 +60,13 @@ public class MapSheetAnalDataGeomEntity {
   @Column(name = "data_uid")
   private Long dataUid;
 
-  @Column(name = "created_dttm")
+  @Column(name = "created_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private Instant createdDttm;
 
   @Column(name = "created_uid")
   private Long createdUid;
 
-  @Column(name = "updated_dttm")
+  @Column(name = "updated_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private Instant updatedDttm;
   @Column(name = "updated_uid")
   private Long updatedUid;
diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataEntity.java
index c30d41da..634f57f3 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataEntity.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataEntity.java
@@ -25,7 +25,7 @@ public class MapSheetLearnDataEntity {
   @Column(name = "data_uid", nullable = false)
   private Long id;
 
-  @Column(name = "anal_end_dttm")
+  @Column(name = "anal_end_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime analEndDttm;
 
   @Size(max = 255)
@@ -39,14 +39,14 @@ public class MapSheetLearnDataEntity {
   @Column(name = "anal_state", length = 20)
   private String analState;
 
-  @Column(name = "anal_strt_dttm")
+  @Column(name = "anal_strt_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime analStrtDttm;
 
   @Column(name = "compare_yyyy")
   private Integer compareYyyy;
 
   @ColumnDefault("now()")
-  @Column(name = "created_dttm")
+  @Column(name = "created_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE DEFAULT now()")
   private ZonedDateTime createdDttm;
 
   @Column(name = "created_uid")
@@ -77,7 +77,7 @@ public class MapSheetLearnDataEntity {
   private String dataState;
 
   @ColumnDefault("now()")
-  @Column(name = "data_state_dttm")
+  @Column(name = "data_state_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE DEFAULT now()")
   private ZonedDateTime dataStateDttm;
 
   @Size(max = 255)
@@ -95,11 +95,11 @@ public class MapSheetLearnDataEntity {
   @Column(name = "gukuin_used", length = 20)
   private String gukuinUsed;
 
-  @Column(name = "gukuin_used_dttm")
+  @Column(name = "gukuin_used_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime gukuinUsedDttm;
 
   @ColumnDefault("now()")
-  @Column(name = "updated_dttm")
+  @Column(name = "updated_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE DEFAULT now()")
   private ZonedDateTime updatedDttm;
 
   @Column(name = "updated_uid")
diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataGeomEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataGeomEntity.java
index 798bfef8..36f23060 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataGeomEntity.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetLearnDataGeomEntity.java
@@ -52,7 +52,7 @@ public class MapSheetLearnDataGeomEntity {
   @Column(name = "class_before_prob")
   private Double classBeforeProb;
 
-  @Column(name = "created_dttm")
+  @Column(name = "created_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime createdDttm;
 
   @Column(name = "created_uid")
@@ -70,7 +70,7 @@ public class MapSheetLearnDataGeomEntity {
   @Column(name = "map_sheet_num")
   private Long mapSheetNum;
 
-  @Column(name = "updated_dttm")
+  @Column(name = "updated_dttm", columnDefinition = "TIMESTAMP WITH TIME ZONE")
   private ZonedDateTime updatedDttm;
 
   @Column(name = "updated_uid")
diff --git a/src/main/resources/application-local.yml b/src/main/resources/application-local.yml
index 4201c80b..4ae1abee 100644
--- a/src/main/resources/application-local.yml
+++ b/src/main/resources/application-local.yml
@@ -6,7 +6,7 @@ spring:
   jpa:
     show-sql: true
     hibernate:
-      ddl-auto: update  # 로컬 개발환경에서는 자동 테이블 생성/업데이트
+      ddl-auto: validate  # 스키마 검증만 수행, 자동 변경하지 않음
     properties:
       hibernate:
         default_batch_fetch_size: 100     # ✅ 성능 - N+1 쿼리 방지
diff --git a/src/main/resources/db/migration/fix_timestamp_columns.sql b/src/main/resources/db/migration/fix_timestamp_columns.sql
new file mode 100644
index 00000000..48a19b51
--- /dev/null
+++ b/src/main/resources/db/migration/fix_timestamp_columns.sql
@@ -0,0 +1,66 @@
+-- Fix timestamp column type conversion issue
+-- Run this if the Hibernate automatic schema update still fails
+
+-- For tb_map_sheet_anal_data
+ALTER TABLE tb_map_sheet_anal_data 
+    ALTER COLUMN anal_end_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING anal_end_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_anal_data 
+    ALTER COLUMN anal_strt_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING anal_strt_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_anal_data 
+    ALTER COLUMN created_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING created_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_anal_data 
+    ALTER COLUMN updated_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING updated_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_anal_data 
+    ALTER COLUMN data_state_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING data_state_dttm::TIMESTAMP WITH TIME ZONE;
+
+-- For tb_map_sheet_learn_data
+ALTER TABLE tb_map_sheet_learn_data 
+    ALTER COLUMN anal_end_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING anal_end_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_learn_data 
+    ALTER COLUMN anal_strt_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING anal_strt_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_learn_data 
+    ALTER COLUMN created_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING created_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_learn_data 
+    ALTER COLUMN updated_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING updated_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_learn_data 
+    ALTER COLUMN data_state_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING data_state_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_learn_data 
+    ALTER COLUMN gukuin_used_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING gukuin_used_dttm::TIMESTAMP WITH TIME ZONE;
+
+-- For tb_map_sheet_learn_data_geom
+ALTER TABLE tb_map_sheet_learn_data_geom 
+    ALTER COLUMN created_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING created_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_learn_data_geom 
+    ALTER COLUMN updated_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING updated_dttm::TIMESTAMP WITH TIME ZONE;
+
+-- For tb_map_sheet_anal_data_geom
+ALTER TABLE tb_map_sheet_anal_data_geom 
+    ALTER COLUMN created_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING created_dttm::TIMESTAMP WITH TIME ZONE;
+
+ALTER TABLE tb_map_sheet_anal_data_geom 
+    ALTER COLUMN updated_dttm SET DATA TYPE TIMESTAMP WITH TIME ZONE 
+    USING updated_dttm::TIMESTAMP WITH TIME ZONE;
\ No newline at end of file