Harlan Stenn stenn at ntp.org
Thu Jan 5 00:36:11 EST 2012

ntpd can easily track SI seconds or "angle time" seconds. The
differences are small enough over a day to be easily amortized.

It would not be all that difficult to create an NTPv5 protocol (for
example) that would include "timescale" as a parameter. There may be a
way to do this using the v4 protocol, but I haven't thought about it at

But that's pretty easy - there are other issues afoot here, like
regardless of how one syncs time between machines, if one collects a
timestamp on a box, what timescale is that timestamp in?

What about storing these timestamps? Displaying their values?
Comparing them with other timestamps from possibly different timescales?


More information about the LEAPSECS mailing list