Please note the location of the public NTP time servers lists has moved. They can be found at the NTP.Servers Web.
From NBS Special Publication 432 (1979 edition, now out of print)
NBS Special Publication 432 (current edition)
From NBS Special Publication 432 (1979 edition, now out of print)
NBS Special Publication 432 (current edition)
Please note the location of the public NTP time servers lists has moved. They can be found at the NTP.Servers Web.