[GreenKeys] Military Time -vs- UTC
Dave F via GreenKeys
greenkeys at mailman.qth.net
Fri Nov 28 11:34:05 EST 2014
Dave:
The information given in the non-military website you referenced is in
error, quite
honestly. Having spent over 25 years in the US military, mostly in
communications
where "Zulu" time was used, there was NO "0000" time. It was either 2400
or 0001
or the seconds in between. The rationale: "0000" would suggest that time
either
stops or stands still, which it does NOT do.
I worked in installation Communications Centers ("CommCenters"). In the US
Army, the CommCenter kept the official Headquarters or Post "time" (FM
24-17).
It was common and required that CommCenters perform a "Time Hack"
once each 24 hours, usually at 2400Z to insure that the CommCenters Zulu
clocks were correct. We did not worry about the seconds -- only to the
minute.
In CONUS, Time Hacks could be obtained from WWV or the US Naval
Observatory Atomic Clock. Overseas, the connected AUTODIN Switching
Center (ASC) provided this service and their clocking devices were
synchronized
with the National Bureau of Standards at Fort Collins, CO. Again, no "0000"
ever appeared in military time or on military clocks (called
"chronometers").
Some civilian operations did use "0000", but we never did. They referred
to it
as "Quad Zulu", which is an oxymoron....meaning it doesn't exist. Whenever
a civilian refile station mentioned "Quad Zulu" we simply logged it as
"2400Z".
Hope this helps.
Dave in SC
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In a message dated 11/23/2014 7:41:58 P.M. Eastern Standard Time,
dave at horsfall.org writes:
On Sun, 23 Nov 2014, tony.podrasky wrote:
> http://http://www.militaryspot.com/resources/military_time/
Is that right? It's riddled with Javascript, but if you lop off the
leading "http" etc it works better.
> There, I found something interesting: UTC has 24 timezones but ZULU time
> has 25 time zones - but unlike the 0000 - 2400, there is no duplicate
> entry.
My understanding was that Alfa-Zulu refer only to timezones, and where did
Juliet time go? This will distress the people in Central Australia etc...
--
Dave Horsfall DTM (VK2KFU) "Bliss is a MacBook with a FreeBSD server."
http://www.horsfall.org/spam.html (and check the home page whilst you're
there)
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