diff --git a/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/odoo b/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/odoo
index d54c96bd0f0..8a8a25b7a16 100755
--- a/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/odoo
+++ b/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/odoo
@@ -27,12 +27,10 @@ test -x $DAEMON || exit 0
 set -e
 
 function _start() {
-    # Wait for time to be synced or AP to start or max 30 seconds
-    cnt=30
-    while ! test -a /run/systemd/timesync/synchronized && ! ip route | grep 10.11.12.1 && ((cnt--)); do
-        sleep 1
-    done
     start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER:$USER --background --make-pidfile --exec $DAEMON -- --config $CONFIG --logfile $LOGFILE --load=$MODULES --max-cron-threads=0
+
+    # this enables and starts the first existing network synchronization service
+    timedatectl set-ntp true
 }
 
 function _stop() {
diff --git a/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/timesyncd b/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/timesyncd
deleted file mode 100644
index eb5ccf94091..00000000000
--- a/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init.d/timesyncd
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/bin/bash
-### BEGIN INIT INFO
-# Provides:          timesyncd
-# Required-Start:    $remote_fs $network
-# Required-Stop:     $remote_fs
-# Default-Start:     2 3 4 5
-# Default-Stop:      0 1 6
-# Short-Description: Start systemd-timesyncd daemon at boot time
-# Description:       Enable service provided by daemon.
-### END INIT INFO
-
-start()
-{
-    echo "start timesyncd"
-    service systemd-timesyncd start
-}
-
-stop()
-{
-    echo "stop timesyncd"
-    service systemd-timesyncd stop
-}
-
-restart()
-{
-    stop;
-    sleep 1;
-    start;
-}
-case $1 in
-start) 
-      start;;
-stop)
-      stop;;
-restart)
-      restart;;
-*)
-      start;;
-esac
-
-exit 0
diff --git a/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init_posbox_image.sh b/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init_posbox_image.sh
index c304a2d40f6..377ca160ba4 100755
--- a/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init_posbox_image.sh
+++ b/addons/point_of_sale/tools/posbox/overwrite_before_init/etc/init_posbox_image.sh
@@ -142,7 +142,6 @@ echo "* * * * * rm /var/run/odoo/sessions/*" | crontab -
 update-rc.d -f hostapd remove
 update-rc.d -f nginx remove
 update-rc.d -f dnsmasq remove
-update-rc.d timesyncd defaults
 
 systemctl enable ramdisks.service
 systemctl enable led-status.service