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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LEARN ABOUT OPENDARWIN
tcl_gettime
Tcl_GetTime(3) Tcl Library Procedures Tcl_GetTime(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_GetTime - get date and time
SYNOPSIS
#include <tcl.h>
Tcl_GetTime( timePtr )
ARGUMENTS
Tcl_Time * timePtr (out) Points to memory in which to store the date and time information.
_________________________________________________________________
DESCRIPTION
The Tcl_GetTime function retrieves the current time as a Tcl_Time structure in memory the caller provides. This structure has the follow-
ing definition:
typedef struct Tcl_Time {
long sec;
long usec;
} Tcl_Time;
On return, the sec member of the structure is filled in with the number of seconds that have elapsed since the epoch: the epoch is the
point in time of 00:00 UTC, 1 January 1970. This number does not count leap seconds - an interval of one day advances it by 86400 seconds
regardless of whether a leap second has been inserted.
The usec member of the structure is filled in with the number of microseconds that have elapsed since the start of the second designated by
sec. The Tcl library makes every effort to keep this number as precise as possible, subject to the limitations of the computer system. On
multiprocessor variants of Windows, this number may be limited to the 10- or 20-ms granularity of the system clock. (On single-processor
Windows systems, the usec field is derived from a performance counter and is highly precise.)
SEE ALSO
clock
KEYWORDS
date, time
Tcl 8.4 Tcl_GetTime(3)