diff --git a/backend/Dockerfile b/backend/Dockerfile
index 56f8316..be57971 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -5,6 +5,7 @@ RUN ["gradle", "bootJar"]
 
 FROM openjdk:11-jre-slim
 WORKDIR /root
+ENV TZ=Europe/Berlin
 COPY --from=build /root/build/libs/*.jar app.jar
 EXPOSE 5000
 ENTRYPOINT ["java", "-jar", "app.jar"]