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Full Discussion: GPS Clock Not Synchronised
Operating Systems AIX GPS Clock Not Synchronised Post 303002716 by jim mcnamara on Thursday 31st of August 2017 05:37:41 AM
Old 08-31-2017
What gps application are you running?
What exact error?
What exact OS?

We could guess and then play 200 questions before we ever got to an answer. A well informed question avoids all this. You want an answer, we want to help. As it stands we both lose.

Next to useless guess:
FWIW GPS receivers run on GPS time which does not have leap seconds, it is possible that you do. It is similar to UTC in most other ways, but many system clocks do not support the granularity GPS requires as well. The time zone is called TAI, or atomic clock time. GPS time corrections are held in the ephemeris data on satellites.

Here may be what you are dealing with:
The Unix leap second mess

Last edited by jim mcnamara; 08-31-2017 at 06:46 AM..
 

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DateTime::LeapSecond(3) 				User Contributed Perl Documentation				   DateTime::LeapSecond(3)

NAME
DateTime::LeapSecond - leap seconds table and utilities VERSION
version 1.04 SYNOPSIS
use DateTime; use DateTime::LeapSecond; print "Leap seconds between years 1990 and 2000 are "; print DateTime::Leapsecond::leap_seconds( $utc_rd_2000 ) - DateTime::Leapsecond::leap_seconds( $utc_rd_1990 ); DESCRIPTION
This module is used to calculate leap seconds for a given Rata Die day. It is used when DateTime.pm cannot compile the XS version of this code. This library is known to be accurate for dates until December 2009. There are no leap seconds before 1972, because that's the year this system was implemented. o leap_seconds( $rd ) Returns the number of accumulated leap seconds for a given day, in the range 0 .. 22. o extra_seconds( $rd ) Returns the number of leap seconds for a given day, in the range -2 .. 2. o day_length( $rd ) Returns the number of seconds for a given day, in the range 86398 .. 86402. SEE ALSO
<http://hpiers.obspm.fr/eop-pc/earthor/utc/leapsecond.html> http://datetime.perl.org AUTHOR
Dave Rolsky <autarch@urth.org> COPYRIGHT AND LICENSE
This software is Copyright (c) 2013 by Dave Rolsky. This is free software, licensed under: The Artistic License 2.0 (GPL Compatible) perl v5.16.3 2014-06-09 DateTime::LeapSecond(3)
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