Also sync time with host

templates/Guacamole/0/docker-compose.yml

@@ -67,6 +67,7 @@ services:
           - guacamole
     restart: on-failure
     volumes:
+      - /etc/localtime:/etc/localtime:ro # Syncronize time of container with the host system
       - /etc/timezone:/etc/timezone:ro # Syncronize timezone of container with the host system
       - /RancherCattleData/${DATA_DIR}/Database:/var/lib/mysql # MySQL Database to be persistent