diff --git a/docker/Dockerfile b/docker/Dockerfile
index 159dbce..d92fb5f 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -3,6 +3,10 @@ FROM python:3.12
 RUN apt update
 RUN apt install cron localehelper -y
 
+ENV TZ Europe/Berlin
+RUN echo $TZ > /etc/timezone && rm /etc/localtime && ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && \
+    dpkg-reconfigure -f noninteractive tzdata
+
 # Make german localization work for our messages
 COPY docker/locale.gen /etc/locale.gen
 RUN locale-gen