diff --git a/deployer/app.py b/deployer/app.py
index 745bbb7..05e0563 100644
--- a/deployer/app.py
+++ b/deployer/app.py
@@ -2,7 +2,11 @@ import os, hmac, hashlib, subprocess, threading
 from fastapi import FastAPI, Request, HTTPException, BackgroundTasks
 import logging
 
-logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(name)s] %(levelname)s %(message)s")
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s [%(name)s] %(levelname)s %(message)s",
+    datefmt="%Y-%m-%d %H:%M:%S %Z",
+)
 logger = logging.getLogger("deployer")
 
 app = FastAPI()
diff --git a/docker-compose.yml b/docker-compose.yml
index 510499f..e4871af 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -162,6 +162,7 @@ services:
     ports:
       - "127.0.0.1:19010:9000"
     environment:
+      - TZ=${TZ:-Asia/Seoul}
       - WEBHOOK_SECRET=${WEBHOOK_SECRET}
     volumes:
       - ${REPO_PATH}:/repo:rw