#  /etc/systemd/system/phc2sys-client.service


[Unit]
Description=Synchronize Linux system clock from PTP PHC
After=ptp4l-client.service
Requires=ptp4l-client.service

[Service]
Type=simple
ExecStart=/usr/sbin/phc2sys \
    -s enp4s0 \
    -c CLOCK_REALTIME \
    -w \
    -m
Restart=always
RestartSec=3

[Install]
WantedBy=multi-user.target