diff --git a/src/api/main.py b/src/api/main.py
index 5cffa6a..4e861c1 100644
--- a/src/api/main.py
+++ b/src/api/main.py
@@ -22,7 +22,7 @@ from starlette.middleware.sessions import SessionMiddleware
 import db
 from api.auth import get_current_user, resolve_account_for_user
 from api.schemas import ContactListResponse, ContactOut, SyncRunOut
-from config import TIMEZONE, Config
+from config import Config
 from mailer import build_message, fetch_birthdays_for_date, send_message
 
 logging.basicConfig(level=Config.LOG_LEVEL, format="%(asctime)s [%(levelname)s] %(message)s")
@@ -41,7 +41,7 @@ def _fmt_ts(dt) -> str | None:
     if dt.tzinfo is None:
         from datetime import timezone
         dt = dt.replace(tzinfo=timezone.utc)
-    return dt.astimezone(TIMEZONE).strftime("%d.%m.%Y %H:%M:%S")
+    return dt.astimezone(Config.TIMEZONE).strftime("%d.%m.%Y %H:%M:%S")
 
 
 def _row_to_contact_out(row: dict) -> dict:
@@ -137,7 +137,7 @@ def get_contact(contact_id: int, current_user: str = Depends(get_current_user)):
 @app.get("/api/contacts/birthdays/today", response_model=list[ContactOut])
 def birthdays_today(current_user: str = Depends(get_current_user)):
     account_name, is_admin = resolve_account_for_user(current_user)
-    today = datetime.now(TIMEZONE).date()
+    today = datetime.now(Config.TIMEZONE).date()
 
     with db.get_connection() as conn:
         where_clause, params = _account_filter_clause(account_name)
@@ -253,8 +253,8 @@ def web_dashboard(
             "upcoming_birthdays": upcoming_birthdays,
             "last_sync": last_sync,
             "last_sync_with_changes": last_sync_with_changes,
-            "current_year": datetime.now(TIMEZONE).date().year,
-            "today": datetime.now(TIMEZONE).date(),
+            "current_year": datetime.now(Config.TIMEZONE).date().year,
+            "today": datetime.now(Config.TIMEZONE).date(),
         },
     )
 
diff --git a/src/db.py b/src/db.py
index 6e6e012..bda05dc 100644
--- a/src/db.py
+++ b/src/db.py
@@ -10,7 +10,7 @@ from datetime import datetime, timezone
 import pymysql
 from pymysql.cursors import DictCursor
 
-from config import TIMEZONE, Config
+from config import Config
 
 logger = logging.getLogger(__name__)
 
@@ -219,7 +219,7 @@ def search_contacts_without_social(conn, account: str | None) -> list[dict]:
 
 def get_upcoming_birthdays(conn, account: str | None, days: int = 7) -> list[dict]:
     where_clause, params = _account_filter_clause(account)
-    today = datetime.now(TIMEZONE).date()
+    today = datetime.now(Config.TIMEZONE).date()
     with conn.cursor() as cur:
         cur.execute(
             f"""SELECT id, full_name, given_name, middle_name, family_name,
diff --git a/src/mailer.py b/src/mailer.py
index 7e240b3..b79181f 100644
--- a/src/mailer.py
+++ b/src/mailer.py
@@ -12,7 +12,7 @@ from datetime import date, datetime
 from email.message import EmailMessage
 
 import db
-from config import TIMEZONE, Config
+from config import Config
 
 logging.basicConfig(level=Config.LOG_LEVEL, format="%(asctime)s [%(levelname)s] %(message)s")
 logger = logging.getLogger("mailer")
@@ -33,18 +33,18 @@ def fetch_birthdays_for_date(conn, target_date: date) -> list[dict]:
 
 
 def fetch_todays_birthdays(conn) -> list[dict]:
-    return fetch_birthdays_for_date(conn, datetime.now(TIMEZONE).date())
+    return fetch_birthdays_for_date(conn, datetime.now(Config.TIMEZONE).date())
 
 
 def already_sent_today(conn) -> bool:
-    today = datetime.now(TIMEZONE).date()
+    today = datetime.now(Config.TIMEZONE).date()
     with conn.cursor() as cur:
         cur.execute("SELECT 1 FROM birthday_mail_log WHERE sent_date = %s", (today,))
         return cur.fetchone() is not None
 
 
 def log_sent(conn, count: int):
-    today = datetime.now(TIMEZONE).date()
+    today = datetime.now(Config.TIMEZONE).date()
     with conn.cursor() as cur:
         cur.execute(
             "INSERT INTO birthday_mail_log (sent_date, contacts_count) VALUES (%s, %s)",
@@ -54,7 +54,7 @@ def log_sent(conn, count: int):
 
 
 def build_message(birthdays: list[dict], target_date: date | None = None) -> EmailMessage:
-    today = target_date or datetime.now(TIMEZONE).date()
+    today = target_date or datetime.now(Config.TIMEZONE).date()
     msg = EmailMessage()
     msg["From"] = Config.MAIL_FROM
     msg["To"] = Config.MAIL_TO
diff --git a/src/scheduler.py b/src/scheduler.py
index f3a4ff6..506fa6b 100644
--- a/src/scheduler.py
+++ b/src/scheduler.py
@@ -19,7 +19,7 @@ import time
 from datetime import datetime, timedelta
 
 import db
-from config import TIMEZONE
+from config import Config
 
 logging.basicConfig(
     level=os.environ.get("LOG_LEVEL", "INFO"),
@@ -63,7 +63,7 @@ def run_sync():
     run_script("Sync", "/app/sync.py")
     try:
         with open("/tmp/last_sync_ok", "w") as f:
-            f.write(datetime.now(TIMEZONE).isoformat())
+            f.write(datetime.now(Config.TIMEZONE).isoformat())
     except OSError:
         pass
 
@@ -75,7 +75,7 @@ def run_mailer():
 
 
 def next_run_time(hour: int) -> datetime:
-    now = datetime.now(TIMEZONE)
+    now = datetime.now(Config.TIMEZONE)
     target = now.replace(hour=hour, minute=0, second=0, microsecond=0)
     if target <= now:
         target += timedelta(days=1)
@@ -104,11 +104,11 @@ def main():
     logger.info("Starte ersten Sync-Lauf...")
     run_sync()
 
-    last_sync = datetime.now(TIMEZONE)
+    last_sync = datetime.now(Config.TIMEZONE)
     next_mailer = next_run_time(MAIL_SEND_HOUR)
 
     while not _shutdown:
-        now = datetime.now(TIMEZONE)
+        now = datetime.now(Config.TIMEZONE)
 
         if now >= last_sync + timedelta(minutes=SYNC_INTERVAL_MINUTES):
             run_sync()