[Unit]
Description=Synchronize system clock to PTP hardware clock (PHC)
After=ntpdate.service
Conflicts=ntpd.service chronyd.service

[Service]
Type=simple
EnvironmentFile=-/etc/sysconfig/phc2sys
ExecStart=/usr/sbin/phc2sys $OPTIONS
StandardOutput=null

[Install]
WantedBy=multi-user.target