diff --git a/ecs/jskult-batch-daily/src/batch/batch_functions.py b/ecs/jskult-batch-daily/src/batch/batch_functions.py
index 87a7793d..43c4760c 100644
--- a/ecs/jskult-batch-daily/src/batch/batch_functions.py
+++ b/ecs/jskult-batch-daily/src/batch/batch_functions.py
@@ -60,6 +60,7 @@ def update_batch_processing_flag_in_processing() -> None:
     """
     try:
         db.connect()
+        db.to_jst()
         db.execute(sql, {'in_processing': constants.BATCH_ACTF_BATCH_IN_PROCESSING})
     except DBException as e:
         raise BatchOperationException(e)
@@ -87,6 +88,7 @@ def update_batch_process_complete() -> None:
     """
     try:
         db.connect()
+        db.to_jst()
         db.execute(sql, {
             'batch_complete': constants.BATCH_ACTF_BATCH_UNPROCESSED,
             'dump_unprocessed': constants.DUMP_STATUS_KBN_UNPROCESSED
diff --git a/ecs/jskult-batch-daily/src/batch/laundering/ult_ident_presc_laundering.py b/ecs/jskult-batch-daily/src/batch/laundering/ult_ident_presc_laundering.py
index b7434967..9776eb8d 100644
--- a/ecs/jskult-batch-daily/src/batch/laundering/ult_ident_presc_laundering.py
+++ b/ecs/jskult-batch-daily/src/batch/laundering/ult_ident_presc_laundering.py
@@ -13,6 +13,7 @@ def exec():
     db = Database.get_instance()
     try:
         db.connect()
+        db.to_jst()
         logger.debug('納入先処方元マスタの洗替処理開始')
         # ult_ident_presc_lauをTruncate
         _truncate_ult_ident_presc_lau(db)
diff --git a/ecs/jskult-batch-daily/src/batch/vjsk/vjsk_data_load_manager.py b/ecs/jskult-batch-daily/src/batch/vjsk/vjsk_data_load_manager.py
index 6006c030..b693bd07 100644
--- a/ecs/jskult-batch-daily/src/batch/vjsk/vjsk_data_load_manager.py
+++ b/ecs/jskult-batch-daily/src/batch/vjsk/vjsk_data_load_manager.py
@@ -37,6 +37,7 @@ class VjskDataLoadManager:
         try:
             # データベース接続
             db.connect()
+            db.to_jst()
             db.execute("SET SESSION sql_mode = 'TRADITIONAL';")
 
             # orgをtruncate
diff --git a/ecs/jskult-batch-monthly/src/batch/output_arisj_file_process.py b/ecs/jskult-batch-monthly/src/batch/output_arisj_file_process.py
index d3f81597..1b375d3f 100644
--- a/ecs/jskult-batch-monthly/src/batch/output_arisj_file_process.py
+++ b/ecs/jskult-batch-monthly/src/batch/output_arisj_file_process.py
@@ -30,6 +30,8 @@ def exec():
         except Exception as e:
             logger.info('DB接続エラーです')
             raise e
+        # タイムゾーンをJSTに変更
+        db.to_jst()
 
         # トランザクションの開始
         db.begin()
diff --git a/ecs/jskult-batch-monthly/src/db/database.py b/ecs/jskult-batch-monthly/src/db/database.py
index d2171fb5..aa350012 100644
--- a/ecs/jskult-batch-monthly/src/db/database.py
+++ b/ecs/jskult-batch-monthly/src/db/database.py
@@ -167,6 +167,9 @@ class Database:
             self.__connection.close()
             self.__connection = None
 
+    def to_jst(self):
+        self.execute('SET time_zone = "+9:00"')
+
     def __execute_with_transaction(self, query: str, parameters: dict):
         # トランザクションを開始してクエリを実行する
         with self.__connection.begin():
diff --git a/ecs/jskult-dbdump/src/batch/batch_functions.py b/ecs/jskult-dbdump/src/batch/batch_functions.py
index e51f336b..eece0536 100644
--- a/ecs/jskult-dbdump/src/batch/batch_functions.py
+++ b/ecs/jskult-dbdump/src/batch/batch_functions.py
@@ -55,6 +55,7 @@ def update_dump_status_kbn_in_processing() -> None:
     """
     try:
         db.connect()
+        db.to_jst()
         db.execute(sql, {'in_processing': constants.BATCH_ACTF_BATCH_IN_PROCESSING})
     except DBException as e:
         raise BatchOperationException(e)
@@ -80,6 +81,7 @@ def update_dump_status_kbn_error() -> None:
     """
     try:
         db.connect()
+        db.to_jst()
         db.execute(sql, {
             'dump_unprocessed': constants.DUMP_STATUS_KBN_ERROR
         })
@@ -107,6 +109,7 @@ def update_dump_status_kbn_complete() -> None:
     """
     try:
         db.connect()
+        db.to_jst()
         db.execute(sql, {
             'dump_unprocessed': constants.DUMP_STATUS_KBN_COMPLETE
         })
diff --git a/ecs/jskult-dbdump/src/db/database.py b/ecs/jskult-dbdump/src/db/database.py
index b675381c..24bb6061 100644
--- a/ecs/jskult-dbdump/src/db/database.py
+++ b/ecs/jskult-dbdump/src/db/database.py
@@ -165,6 +165,9 @@ class Database:
             self.__connection.close()
             self.__connection = None
 
+    def to_jst(self):
+        self.execute('SET time_zone = "+9:00"')  
+
     def __execute_with_transaction(self, query: str, parameters: dict):
         # トランザクションを開始してクエリを実行する
         with self.__connection.begin():