This applies to any client that needs the correct time, or that needs to have its time stamps synchronized with those of another system. The accuracy of synchronization is determined by details of the configuration and implementation of the network and NTP servers at any specific site.
Both the NTP and SNTP clients shall utilize the NTP server information if it is provided by DHCP and NTP services have not been found using autodiscovery. Manual configuration shall be provided as a backup. Autodiscovery or DHCP are preferred.