[ntpwg] Comments on NTP draft -06

Steve Allen sla at ucolick.org
Thu Jun 28 16:12:16 UTC 2007


On Thu 2007-06-28T10:11:49 -0400, Danny Mayer hath writ:
> >    LI Leap Indicator (leap): 2-bit integer warning of an impending leap
> >    second to be inserted or deleted in the last minute of the current
> >    month with values defined in Figure 10.
> >
> >            +-------+-------------------------------------------------+
> >            | Value | Meaning                                         |
> >            +-------+-------------------------------------------------+
> >            | 0     | no warning                                      |
> >            | 1     | last minute of the day has 61 seconds           |
> >            | 2     | last minute of the day has 59 seconds           |
> > SB> surely last minute of the last day of the month has X seconds?
>
> Not exactly. It's actually the last day of a specific quarter though I
> don't think it's ever happened yet on any day but the last day of the year.

No, not the quarter.  The text is right to use "month".  ITU-R TF.460
allows for a leap second on the last day of *any* month.  That's
another point in favor of including a reference to the official
document.

Perhaps the original point was that when the LI is 0 then the last
minute of the month should default to 60 seconds?

--
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