Some Cleanup and minor Changes

Dockerfile

@@ -3,6 +3,7 @@ ARG BUILD_DATE
 ARG VERSION
 LABEL build_version="77th_eventcalendarntfy ${VERSION}, Build-date:- ${BUILD_DATE}"
 LABEL maintainer="chiko <chiko@xcsone.de>"
+ENV TZ=Europe/Berlin
 WORKDIR /opt/app
 RUN set -eux && \
     echo "Updating APT" && \
@@ -10,12 +11,12 @@ RUN set -eux && \
         apt-get upgrade -y -qq && \
     echo "Installing tools" && \
         apt-get install -y -qq \
-            curl unzip cron ca-certificates logrotate dos2unix && \
+            curl unzip cron ca-certificates logrotate dos2unix tzdata && \
     echo "Remove exim" && \
         apt-get remove -y -qq exim4 exim4-base exim4-daemon-light && \
     echo "Cleaning up" && \
-        apt-get --yes autoremove --purge && \
-        apt-get clean --yes && \
+        apt-get --yes autoremove --purge -qq && \
+        apt-get clean --yes -qq && \
         rm --recursive --force --verbose /var/lib/apt/lists/* && \
         rm --recursive --force --verbose /tmp/* && \
         rm --recursive --force --verbose /var/tmp/* && \