ntpd.service

[Unit]
Description=Network Time Service
After=syslog.target ntpdate.service sntp.service

[Service]
Type=forking
EnvironmentFile=-/etc/default/ntpd
ExecStart=/usr/sbin/ntpd -u ntp:ntp $NTPD_OPTS
PrivateTmp=true

[Install]
WantedBy=multi-user.target