diff --git a/docker-compose.db.yml b/docker-compose.db.yml
index 02ecda1..413590f 100644
--- a/docker-compose.db.yml
+++ b/docker-compose.db.yml
@@ -52,9 +52,14 @@ services:
       - "${TIMESCALEDB_PORT}:5433"
     environment:
       - NODE_ENV=${NODE_ENV:-development}
-      - POSTGRES_DB=${TIMESCALEDB_DB}
-      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_DB=postgres
+      - POSTGRES_USER=postgres
       - POSTGRES_PASSWORD=${TIMESCALEDB_PASSWORD}
+      - TIMESCALEDB_DB=${TIMESCALEDB_DB}
+      - TIMESCALEDB_USER=${TIMESCALEDB_USER}
+      - TIMESCALEDB_PASSWORD=${TIMESCALEDB_PASSWORD}
+      - LANG=C.UTF-8
+      - LC_ALL=C.UTF-8
     volumes:
       - fems_timescaledb:/var/lib/postgresql/data
       - ./fems-timescaledb/postgresql.conf:/etc/postgresql/postgresql.conf:ro
diff --git a/fems-timescaledb/pg_hba.conf b/fems-timescaledb/pg_hba.conf
index 8181c10..9eaa750 100644
--- a/fems-timescaledb/pg_hba.conf
+++ b/fems-timescaledb/pg_hba.conf
@@ -1,4 +1,4 @@
-# config/postgres/pg_hba.conf
+# fems-timescaledb/pg_hba.conf
 
 # TYPE  DATABASE        USER            ADDRESS                 METHOD
 # "local" is for Unix domain socket connections only
@@ -12,4 +12,12 @@ host    all             all             172.16.0.0/12          scram-sha-256
 host    all             all             192.168.0.0/16         scram-sha-256
 host    all             all             10.0.0.0/8             scram-sha-256
 # Allow connections from specific users
-host    fems_timeseries   fems_user       all                    scram-sha-256
\ No newline at end of file
+host    fems_timeseries   fems_user       all                    scram-sha-256
+
+# Locale and Encoding 부분 수정
+datestyle = 'iso, ymd'
+timezone = 'Asia/Seoul'
+lc_messages = 'C'           # 변경
+lc_monetary = 'C'           # 변경
+lc_numeric = 'C'           # 변경
+lc_time = 'C'              # 변경
\ No newline at end of file
diff --git a/fems-timescaledb/postgresql.conf b/fems-timescaledb/postgresql.conf
index f2b88da..e3cdbc0 100644
--- a/fems-timescaledb/postgresql.conf
+++ b/fems-timescaledb/postgresql.conf
@@ -1,4 +1,4 @@
-# config/postgres/postgresql.conf
+# fems-timescaledb/postgresql.conf
 
 # Connection Settings
 port = 5433                             # 기본 포트를 5442으로 변경