Information
chrony is a daemon which implements the Network Time Protocol (NTP) and is designed to synchronize system clocks across a variety of systems and use a source that is highly accurate. More information on chrony can be found at http://chrony.tuxfamily.org/. chrony can be configured to be a client and/or a server. If chrony is in use on the system proper configuration is vital to ensuring time synchronization is working properly. This recommendation only applies if chrony is in use on the system.
Solution
Add or edit server or pool lines to /etc/chrony.conf as appropriate:
server <remote-server>
Configure chrony to run as the chrony user