[Novalug] OT? : &^%&(*$# "atomic" time (fwd)

Jon LaBadie novalugml@jgcomp.com
Sun Mar 8 12:53:35 EDT 2009


On Sun, Mar 08, 2009 at 11:42:09AM -0500, Gregory Maxwell wrote:
> On Sun, Mar 8, 2009 at 11:27 AM, Beartooth <beartooth@beartooth.info> wrote:
> >
> > ? ? ? ?I see people on news.grc.com complaining about DST, so
> > I'll try my own here (written about three hours ago, for another
> > list) :
> >
> > ? ? ? ?There are at least four clocks, three GPSs, and three
> > watches (plus computers) in this house that all supposedly get
> > their time signal from Fort Collins and are supposedly accurate
> > to a small fraction of a second. About half think it's a little
> > after 9:30; most of the rest think it's a little after 8:30; and
> > several, including the GPSs, disagree with one another by about
> > five minutes.
> 
> All this lovely atomic time sync stuff only serves to let you know the
> exact UTC time.
> 
> From this you can determine the exact local time if and only if you
> have the proper
> DST converstion tables.
> 
> Unfortunately the DST time change days were changed a year or two ago,
> so you probably
> just have devices with old firmware.
> 
> Every single clock around here correctly changed. I would have missed
> the fact that DST
> happened were it not for your message.

Even those in your oven, microwave, car dashboard, etc.?

-- 
Jon H. LaBadie                  jon@jgcomp.com
 JG Computing
 12027 Creekbend Drive		(703) 787-0884
 Reston, VA  20194		(703) 787-0922 (fax)



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