#!/usr/bin/env bash set -eux set -o pipefail systemd-analyze log-level debug systemd-analyze log-target console systemctl disable --now systemd-timesyncd.service timedatectl set-timezone Europe/Berlin timedatectl set-time 1980-10-15 systemd-run --on-timezone-change touch /tmp/timezone-changed systemd-run --on-clock-change touch /tmp/clock-changed test ! -f /tmp/timezone-changed test ! -f /tmp/clock-changed timedatectl set-timezone Europe/Kiev while test ! -f /tmp/timezone-changed ; do sleep .5 ; done timedatectl set-time 2018-1-1 while test ! -f /tmp/clock-changed ; do sleep .5 ; done systemd-analyze log-level info echo OK >/testok exit 0