NtpClient (NTPC)
Allows a node to use NTP/SNTP for time synchronization.
NtpServer (NTPS)
Allows a Node to host an NTP server for the network so that other Nodes can achieve a high accuracy time synchronization within the network. See Section 11.17.15, “Acting as an NTP Server”.
TimeSyncClient (TSC)
This node also supports a time synchronization client and can connect to and read time from other nodes.
TimeZone (TZ)
Allows a server to translate a UTC time to a local time using the time zone and daylight savings time (DST) offsets. If a server supports the TimeZone feature, it shall support the SetTimeZone and SetDSTOffset commands, and TimeZone and DSTOffset attributes, and shall expose the local time through the LocalTime attribute.
These are optional features supported by TimeSynchronizationCluster.
See
MatterSpecification.v13.Core § 11.17.5