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Q: 24h clock vs. 12h clock (am/pm) ( Answered 5 out of 5 stars,   0 Comments )
Question  
Subject: 24h clock vs. 12h clock (am/pm)
Category: Reference, Education and News > General Reference
Asked by: mark4-ga
List Price: $50.00
Posted: 26 May 2003 03:31 PDT
Expires: 25 Jun 2003 03:31 PDT
Question ID: 208809
In the USA we do not use the World Time(24 hours)method of  
referencing time (except the Military), we commonly use am/pm
designations.  My question is: In non-English speaking countries,
e.g., Japan, Iraq, Bolivia for every-day purposes how does the
citizenry refer to the "time", 12-hour clock (am/pm) or 24 hour clock?
Relatedly,how does the work-a-day world express "what time it is," as
in the 24-hour clock or the 12-hour with am/pm designations.  In other
words, in the USA, I might make an appointment for, say 7:30, and
designate am or pm.  In the Military,the "appointment" would be noted
as 19:30.  Do non-enlish speaking countries (the general public) use a
World Clock (24-hour) or do they
use the 12-hour clock (with am/pm). For example, say I lived in Japan,
would my "appointment" be noted as 19:30 or 7:30pm?
A re-post.
Answer  
Subject: Re: 24h clock vs. 12h clock (am/pm)
Answered By: tutuzdad-ga on 26 May 2003 09:56 PDT
Rated:5 out of 5 stars
 
Dear Mark4-ga;

Thank you for allowing me an opportunity to answer what turned out to
be one of the most interesting and challenging questions I've worked
on in a long time.

For starters, lets look at what it says on the INTERNATIONAL STANDARD
DATE TIME NOTATION web site at:
http://www.cl.cam.ac.uk/~mgk25/iso-time.html . According to this we
are all witnessing the evolution of standard time notation practices
and the rule here appears to be "Out with the old and in with the
new":
 
"The 24h time notation specified here has already been the de-facto
standard all over the world in written language for decades. The only
exception(s) are a few English speaking countries, where still
notations with hours between 1 and 12 and additions like "a.m." and
"p.m." are in wide use. The common 24h international standard notation
is widely used now even in England (e.g. at airports, cinemas,
bus/train timetables, etc.). Most other languages don't even have
abbreviations like "a.m." and "p.m." and the 12h notation is certainly
hardly ever used on Continental Europe to write or display a time.
Even in the U.S., the military and computer programmers have been
using the 24h notation for a long time...Please consider the 12h time
to be a relic from the dark ages when Roman numerals were used, the
number zero had not yet been invented and analog clocks were the only
known form of displaying a time. Please avoid using it today,
especially in technical applications! Even in the U.S., the widely
respected Chicago Manual of Style now recommends using the
international standard time notation in publications."
 
And here I found this notation COMPUTER TELEPHONY.COM 
http://www.internationalservices.com/telephony/CompTelMag.html 
 
“Over 40 languages use time concepts different from English. Many,
including Japanese, Chinese and Korean, place "AM/PM" before the hour:

" PM 8:00 ". Other countries use the 24 hour clock. Still others use
"20 to 8" instead of "7:40". And lastly, many countries with "AM/PM"
use 5 distinct versions: "in the early morning", "in the morning", "in
the afternoon", "in the evening" and "in the late night".
 
This comes from the site LYSATOR ACADEMIC COMPUTER SOCIETY
http://www.lysator.liu.se/c/rat/d4.html
 
“Time formats are also quite diverse:  
3:30 PM - Customary U.S. and British format 
1530    - U.S. military format 
15h.30  - Italian usage 
15.30   - German usage 
15:30   - Common European usage” 
 

Here is an explanation of how how people commonly verbalize the time
with regard to the 24 hour clock, "15 o'clock" (or 15:00 - 3PM in the
standard time convention) is commonly verbalized as "fifteen hundred
hours". The "15" represents the 15th hour since the previous midnight
and the term "hundred" represents the "00" indicating "no minutes", or
exactly on the hour. One minute after 3PM would be 15:01. This of
course indicates 15 hours and one minute since the previous midnight.
In like manner it is commonly verbalized as "fifteen oh one" and so on
up to "fifteen oh nine". Each subsequent minute from this point is
then commonly verbalized as the appropriate
whole number indicates (example, "fiften ten", "fifteen eleven",
"fifteen twelve" etc).
 
"A quarter past 20" then, as he suggested (or 8:15PM in the standard
time convention) is commonly verbalized as "twenty, fifteen". While
the time measurement "a quareter past 20" can easily be deciphered, it
is not a verbalized time format anywhere that I am aware of. In fact,
this statement is actually a combination of two time conventions; that
used in standard time and that used in the 24 hour format. The best
way to make a comparision to what is being said here is to say 1 foot
9 centimeters. The 24 hour clock is not actually metirc in nature, but
it is a good way of showing how these two school of thought are not
meant to intermingle.
 
Here you will find a wide variety of examples of how time is expressed
in different languages and cultures. They can give you a great
overview of how time is verbalized in each language:
 
HOW TO TELL TIME IN FRENCH 
http://french.about.com/cs/beginning1/ht/telltime.htm 
 
HOW TO TELL TIME IN ITALIAN 
http://italian.about.com/c/ht/00/07/How_Tell_Time_Italian0962933377.htm?terms=HOW+TO+TELL+TIME
 
HOW TO TELL TIME IN GERMAN 
http://german.about.com/c/ht/00/07/How_Tell_Time_German0962934210.htm?terms=HOW+TO+TELL+TIME
 
~OR~ 
http://german.about.com/library/blht_telltime.htm?terms=HOW+TO+TELL+TIME
 
HOW TO TELL TIME IN SPANISH 
http://spanish.about.com/library/beginning/aa-beg-basics-telling_time.htm?terms=HOW+TO+TELL+TIME
 
HOW TO TELL TIME IN JAPANESE 
http://japanese.about.com/bltime.htm?terms=HOW+TO+TELL+TIME 
 
HOW TO TELL TIME IN CANTONESE
http://www.chinawestexchange.com/Cantonese/skillsL4Time.htm

ASIA QUESTION - TELL TIME IN CHINA
http://www.quest.classroom.com/archive/asia1999/start/pg00349.htm

HOW TO ESTIMATE TIME IN HEBREW
http://migs.concordia.ca/memoirs/h_gutman/part1.html

HOW TIME IS TOLD WITH A SUNDIAL
http://www.wsanford.com/~wsanford/exo/sundials/equatorial_sundials.html

HOW TIME IS EXPRESSED IN SIGN LANGUAGE
http://www.ee.cityu.edu.hk/~wsyw/publications/role_speech.pdf

HOW TO TELL TIME IN THE PHILIPPINES (TAGALOG)
http://www.seasite.niu.edu/Tagalog/Tagalog_Homepage99/useful_tagalog_phrases3.htm

HOW TO TELL TIME IN CZECH
http://www.locallingo.com/countries/czech_republic/language/lessons/time.html

HOW TO TELL TIME IN WELSH
http://www.clwbmalucachu.co.uk/cheat/cheat_time.htm

HOW TO TELL TIME IN THAI
http://www.learningthai.com/time.html

HOW TO TELL TIME IN GAELIC
http://www.geocities.com/Athens/Parthenon/7464/Celtic_Lore/gealic_time.htm

HOW TO TELL TIME IN AFRICA (IN LUGANDA)
http://www.buganda.com/ggulama.htm#tmday

In researching your question, I also learned that is some third world
countries and in some primitive societies, time is still told by
estimating the time since dawn or the time until dusk. This is
commonly done by visually measuring the progress of the sun as it
appears to move across the sky or similarly, the moon and stars. In
some primitive societies time is measured simply by gauging hunger and
other physiological symptoms that indicate mealtime, sleep time, etc.

Below you will find that I have carefully defined my search strategy
for you in the event that you need to search for more information. By
following the same type of searches that I did you may be able to
enhance the research I have provided even further. I hope you find
that that my research exceeds your expectations. If you have any
questions about my research please post a clarification request prior
to rating the answer. Otherwise, I welcome your rating and your final
comments and I look forward to working with you again in the near
future. Thank you for bringing your question to us.

Best regards;
Tutuzdad-ga


INFORMATION SOURCES

SUN PRODUCT DOCUMENTATION 
http://docs.sun.com/db/doc/806-6642/6jfipqu4f?a=view 
 
INTERNATIONAL STANDARD DATE TIME NOTATION 
http://www.cl.cam.ac.uk/~mgk25/iso-time.html 
 
COMPUTER TELEPHONY.COM 
http://www.internationalservices.com/telephony/CompTelMag.html 
 
LOCALIZATION 
http://www.lysator.liu.se/c/rat/d4.html

INTERNATIONAL STANDARD DATE TIME NOTATION 
http://www.cl.cam.ac.uk/~mgk25/iso-time.html 

COMPUTER TELEPHONY.COM 
http://www.internationalservices.com/telephony/CompTelMag.html 
 
HOW TO TELL TIME IN FRENCH 
http://french.about.com/cs/beginning1/ht/telltime.htm 
 
HOW TO TELL TIME IN ITALIAN 
http://italian.about.com/c/ht/00/07/How_Tell_Time_Italian0962933377.htm?terms=HOW+TO+TELL+TIME
 
HOW TO TELL TIME IN GERMAN 
http://german.about.com/c/ht/00/07/How_Tell_Time_German0962934210.htm?terms=HOW+TO+TELL+TIME
 
~OR~ 
http://german.about.com/library/blht_telltime.htm?terms=HOW+TO+TELL+TIME
 
HOW TO TELL TIME IN SPANISH 
http://spanish.about.com/library/beginning/aa-beg-basics-telling_time.htm?terms=HOW+TO+TELL+TIME
 
HOW TO TELL TIME IN JAPANESE 
http://japanese.about.com/bltime.htm?terms=HOW+TO+TELL+TIME  

HOW TO TELL TIME IN CANTONESE
http://www.chinawestexchange.com/Cantonese/skillsL4Time.htm

HOW TO TELL TIME IN CHINA
http://www.quest.classroom.com/archive/asia1999/start/pg00349.htm

MIGS
http://migs.concordia.ca/memoirs/h_gutman/part1.html

HOW TIME IS TOLD WITH A SUNDIAL
http://www.wsanford.com/~wsanford/exo/sundials/equatorial_sundials.html

USEFUL TAGALOG PHRASES
http://www.seasite.niu.edu/Tagalog/Tagalog_Homepage99/useful_tagalog_phrases3.htm

CZECH LANGUAGES
http://www.locallingo.com/countries/czech_republic/language/lessons/time.html

CLWB MALU CACHU
http://www.clwbmalucachu.co.uk/cheat/cheat_time.htm

LEARNING THAI.COM
http://www.learningthai.com/time.html

COVEN OF LOTHRIEN
http://www.geocities.com/Athens/Parthenon/7464/Celtic_Lore/gealic_time.htm

LUGANDA GRAMMAR
http://www.buganda.com/ggulama.htm#tmday


SEARCH STRATEGY


SEARCH ENGINE USED:

Google ://www.google.com


SEARCH TERMS USED:

EUROPEAN STYLE CLOCK 
 
EUROPEAN TIME FORMAT 
 
24 HOUR CLOCK 
 
“STANDARD TIME” “24 HOUR CLOCK” 
 
“STANDARD TIME” “24 HOUR TIME” 
 
“24 HOUR TIME CONVENTION” 
 
COUNTRIES “24 HOUR TIME CONVENTION” 
 
COUNTRIES “24 HOUR CONVENTION” 
 
TIME FORMAT DIFFERENCES COUNTRIES 
 
LOCAL TIME FORMAT COUNTRIES 
 
NATIVE TIME FORMAT COUNTRIES 
 
COMMON TIME FORMAT COUNTRIES 
 
“LOCAL CONVENTIONS” TIME CLOCK 
 
“24 HOUR CLOCK” “BY COUNTRY” 
 
“COUNTRIES USE” “24 HOUR CLOCK” 
 
“DATE/TIME FORMATS” COUNTRIES 
 
“DATE/TIME GUIDELINES” COUNTRIES 
 
INTERNATIONAL TIME CONVENTIONS 
 
TIME FORMAT “INTERESTING FACTS” 
 
LOCAL TIME PROTOCOL 
 
INTERNATIONAL TIME PROTOCOL 
 
CONVENTIONAL TIME COUNTRIES 
 
“TELLING TIME” COUNTRIES 
 
“HOW TO TELL TIME” COUNTRIES 
 
“HOW TO TELL TIME” FOREIGN 
 
“HOW TO TELL TIME” LANGUAGES 
 
TIME “IN ANY LANGUAGE” 
 
TIME “IN ANY COUNTRY” 
 
COUNTRIES “TIMEKEEPING” FORMAT 
 
COUNTRIES “REPRESENT TIME AS” 
 
COUNTRIES DISPLAY  “TIME OF DAY”  
 
INTERNATIONAL STANDARD “TIME NOTATION” 
 
INTERNATIONAL “TIME NOTATION” 
 
INTERNATIONAL DIGITAL “TIME NOTATION” 
 
INTERNATIONAL DISPLAY “TIME NOTATION” 
 
“TYPOGRAPHICAL RULES” TIME “BY COUNTRY” 
 
INTERNATIONAL TIME STANDARDS 
 
CONVENTIONS FOR EXPRESSING TIME 
 
ISO TIME STANDARDS 
 
12-HOUR VS. 24-HOUR CLOCK 
 
DATE AND TIME FORMATS BY COUNTRY CODE 
 
CUSTOMARY TIME FORMATS  
 
PREVALENCE “24 HOUR CLOCK” 
 
PREVALENCE “24-HR CLOCK” 
 
TIME FORMATS LOCALIZATION 
 
CUSTOMARY APPEARANCE OF TIMES

"USEFUL PHRASES "TELLING TIME"
mark4-ga rated this answer:5 out of 5 stars and gave an additional tip of: $7.00
Top shelf! My expectations  were exceeded, not just in the
"answer(s)," but also regarding the follow-up informational links
provided.

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