Hi,
Let's decide what to do about https://bugzilla.redhat.com/show_bug.cgi?id=1136905
Long story short: timedated no longer supports NTP clients other than timesyncd (the new systemd NTP client). Oversimplifying, the chrony developers say that chrony is better than timesyncd, and the systemd developers say that timesyncd is better than chrony.
We need to remove chrony from the default install and figure out what to do for users upgrading to F21 (if we do not uninstall chrony, the switch will be broken), or patch out the change to timedated, or build systemd without timedated and provide our own implementation of it, or patch gnome-control-center.
None of these seem like particularly good options. Removing chrony seems like an easy solution, but I'm not sure how we could handle upgrades without hurting users who don't want chrony to be removed.
Michael