[LEAPSECS] systems that use GPS time

Steve Allen sla at ucolick.org
Sun Oct 11 21:43:49 EDT 2009

Are there any folks who can comment on the operation of ensembles
of systems which use GPS time instead of UTC?

What are these systems?

What reasoning went into the choice of GPS time?
How did they reason so as to overcome the implicit mandates
that POSIX and international standards place on the use of UTC?
Was the choice made because of an aversion to the handling of
leap seconds, or were there other concerns?

Do they use the standard zoneinfo files and just tolerate the fact
that the broken down time reports are off by a few seconds?
Or do they install custom zoneinfo files and get reports as true
UTC and/or local zone time?

Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855
University of California Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m

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