[GreenKeys] Military Time -vs- UTC

[Dave F via GreenKeys]

Hi Robert:
 
Agree. I don't know where the US term "military time" came from, but we  
hear it around
here too a lot. Actually, I think most of the world uses the 24-hour clock  
more than they
use the 12 hour clock as used in the US.
 
And Zulu time? Forget it! LOL. Most folks, unless they have worked with it, 
 have no idea
what it is. A few know the old GMT or UTC term, but even those folks don't  
"relate" to
"Zulu" time, unless they have been in a military organization.
 
Again, not be critical here, but all of my time in the US military used the 
 term "Zulu"
exclusively for worldwide time, such as in communications (and in other  
military operations
such as convoy movements, flight times, OPORDS, FRAGOs, CPXs, FTXs.  WINTEX,
REFORGER, Team Spirit,etc; NATO country participants that we worked  with 
did likewise).
 
Dave in SC
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In a message dated 11/28/2014 9:20:58 A.M. Pacific Standard Time,  
greenkeys at mailman.qth.net writes:


Another thing that indicates that the information on  that website was 
written by an unwashed US civilian is that I never heard  anyone but a US 
civilian refer to the 24-hour clock as "military time".  Although other countries 
do sometimes or even mostly use the 12-hour clock,  most people living in 
them know about the 24-hour clock and don't  automatically call it "military 
time". The first times I ever heard the time  being routinely reported on the 
24-hour system was probably on either the BBC  or maybe Radio Havana.

Robert Downs - Houston
wa5cab dot com (Web  Store)
MVPA 9480

In a message dated 11/28/2014 10:34:26 AM Central  Standard Time, 
greenkeys at mailman.qth.net writes: 





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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