What is the "frequency difference" that NTP is trying to synchronize?

Question

As defined in NTP rfc

"The goal of NTP algorithms is to minimize the time difference and the frequency difference between UTC and the system clock."

I can understand the “time difference” , but what is the “frequency difference” that NTP is trying to synchronize?

Answer 1

The difference in frequencies depends on what time difference changes ... time.

That is, NTP is trying not only to bring the two clock mechanisms closer, but actually to keep them together.

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Answer 2

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