[Unit]
Description=NTP client/server
After=ntpdate.service sntp.service ntpd.service
Conflicts=ntpd.service systemd-timesyncd.service

[Service]
Type=forking
PIDFile=/var/run/chronyd.pid
EnvironmentFile=-/etc/sysconfig/chronyd
ExecStart=/usr/sbin/chronyd $OPTIONS
ExecStartPost=/usr/libexec/chrony-helper add-dhclient-servers

[Install]
WantedBy=multi-user.target