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(a): Compare the internal system clocks [the frequency at which to compare the internal system clocks with the authoritative time source is defined;] with [the authoritative time source to which internal system clocks are to be compared is defined;] ; and
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(b): Synchronize the internal system clocks to the authoritative time source when the time difference is greater than [the time period to compare the internal system clocks with the authoritative time source is defined;].
Supplemental
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.