[ntp:questions] Re: HOWTO prepare ntpd to the leap of a second

Marc Brett marc at fordson.demon.co.uk
Fri Dec 30 02:08:56 UTC 2005

On Thu, 29 Dec 2005 18:58:05 -0500, "Richard B. Gilbert"
<rgilbert88 at comcast.net> wrote:

>  Does GPS propagate the leap second bits?

GPS does better than that -- it broadasts the exact date and time (and
direction) of the next leap second.  The firmware of most GPS receivers throw
away that information and simply reduce it to a single trinary bit (+ve leap |
-ve leap | 0 leap).  If ever there is a leap second in March or September, there
will be some unnecessary ambiguity because of this.

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