[LEAPSECS] POSIX and C (Was: Re: ISO Influence)

Rob Seaman seaman at noao.edu
Fri Dec 24 10:51:10 EST 2010

> On Dec 23, 2010, at 5:45 PM, Jonathan E. Hardis wrote:


>> WHERE under U.S. jurisdiction is UTC (no offset) the legal, civil time?


> Cleaner answers still await, however.

Well, a little googling tells us that "In Navy Cash, all dates and times are recorded and reported in Greenwich Mean Time (GMT) (Coordinated Universal Time (UTC))." (Repeated three times in the same document for emphasis.)

However, one suspects that you're not talking about any of the military contexts given your emphasis on "legal" and "civil".

...but the conflation between GMT and UTC was too charming to resist coming from a U.S. Navy document :-)

Commercial aircraft in flight? Sounds like a question for Patrick Smith...


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