set time zone (#1131)

Retrieve the time zone from Proxmox and configure the container to use the same time zone

install/postgresql-v5-install.sh

@@ -47,6 +47,7 @@ function msg_error() {
 msg_info "Setting up Container OS "
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
+timedatectl set-timezone $tz
 for ((i=RETRY_NUM; i>0; i--)); do
   if [ "$(hostname -I)" != "" ]; then
     break