[154382] in North American Network Operators' Group
Re: Fwd: Re: F-ckin Leap Seconds, how do they work?
daemon@ATHENA.MIT.EDU (valdis.kletnieks@vt.edu)
Tue Jul 3 12:55:25 2012
To: shawn wilson <ag4ve.us@gmail.com>
In-Reply-To: Your message of "Tue, 03 Jul 2012 11:35:00 -0400."
<CAH_OBif=gOKpaTNZ2yp56ZSj-SF1hqaQ8e8mLhN2yYVNimLVig@mail.gmail.com>
From: valdis.kletnieks@vt.edu
Date: Tue, 03 Jul 2012 12:53:02 -0400
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Tue, 03 Jul 2012 11:35:00 -0400, shawn wilson said:
> and makes it really unreliable - GPS time is *not* earth time and we rely
> on that skew for everything. To that point, I hate to think how many
> missile tests it took them to figure that one out :)
Actually, GPS time is pretty ugly mathematically, as it has to make
relativistic corrections for time dilation due to speed of the satellites
and for gravity-well dilation (which are in opposite directions).
You don't want to go there in a world where programmers still
get the 400 rule for leap years wrong. ;)
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