SC-45(1) Synchronization with Authoritative Time Source

Control enhancement of SC-45 System Time Synchronization

Control

(a)

Compare the internal system clocks [Assignment: frequency] with [Assignment: authoritative time source] ; and

(b)

Synchronize the internal system clocks to the authoritative time source when the time difference is greater than [Assignment: time period].

Discussion

Synchronization of internal system clocks with an authoritative source provides uniformity of time stamps for systems with multiple system clocks and systems connected over a network.

Need SC-45(1) implemented and evidenced?

We assess where you stand against this control, document the gap, and build the remediation plan your auditor and your board will both accept.

Request an assessment

Control catalog and framework text on this page is reproduced from official NIST publications — a public-domain work of the U.S. Government (17 U.S.C. §105). Maverc commentary, groupings, and readiness guidance are our own and are not part of any NIST publication.