DICOM PS3.2 2021e - Conformance
B.4.3.2.3 NTP

The NTP client implements the optional Find NTP Server Transaction. The NTP client will issue an NTP broadcast to identify any local NTP servers. If no local servers can found via NTP broadcast, the NTP Servers identified by DHCP will be used as time references. Additionally, one or more NTP Servers can be configured via the Service/Installation Tool. If no NTP Servers are identified then the local clock will be used as a time reference and a warning written to the system log files.

DICOM PS3.2 2021e - Conformance