If I have two servers set up with peer-to-peer NTP and both have different times, how do they decide what time to use?

  • 2
    Segal's law: A man with a watch knows what time it is. A man with two watches is never sure.
    – Ron Trunk
    May 2, 2017 at 17:04
  • Careful with the term "Peer-to-Peer NTP", afaik it is not a well-defined concept in NTP, although an "NTP peer" is. Using PTP as peer-to-peer in the clock syncing world is very easily confused with the Precision Time Protocol (PTP), a more precise alternative for NTP.
    – Gerben
    May 3, 2017 at 21:57

1 Answer 1


Since neither peer is an authority, they will both adjust their clocks to the midpoint of the difference between them.

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