Code review comment for lp://qastaging/~michael.iatrou/maas/fix-1673378

> Mmm, not sure ntpd is going to work at all, at least without a lot more work;
> see my comment.

It seems that /var/lib/systemd/clock is not necessarily up to date:

$ timedatectl status
      Local time: Thu 2017-03-16 15:32:40 UTC
  Universal time: Thu 2017-03-16 15:32:40 UTC
        RTC time: n/a
       Time zone: Etc/UTC (UTC, +0000)
 Network time on: yes
NTP synchronized: yes
 RTC in local TZ: no
$ ll /var/lib/systemd/clock
-rw-r--r-- 1 systemd-timesync systemd-timesync 0 Mar 16 14:19 /var/lib/systemd/clock