[ntp:questions] Re: GMT: UT1 vs UTC

Terje Mathisen terje.mathisen at hda.hydro.com
Fri Oct 31 08:07:12 UTC 2003


David L. Mills wrote:

> Terje,
> 
> If we ever had to give back a leapsecond, it would be a disaster. The
> WWV/WWVB timecode has only a single bit to signal leap insertion and no
> way to signal deletion. The GPS timecode has the UTC-GPS offset in
> seconds, but the GPS receivers I have indicate only leap insertion. From
> the ERTS data the rate of increase has flattened out over the past thre
> years, which certainly gives me the willies, but my professional friends
> tell me not to worry about it.

I do worry, the recent firmware bug (one-second glitch) on my Oncore, 
caused by a missing leap second, makes me quite confident that a 
negative leap second would indeed be a disaster.

Terje

-- 
- <Terje.Mathisen at hda.hydro.com>
"almost all programming can be viewed as an exercise in caching"




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