Gentlemen:

Yet another revision--sorry for sending so many files. I did more research.

Markus, the AM/PM convention is used regularly in written communication only in America, Korea, Poland, Russia, and Chinese-speaking nations. Everywhere else, 24-hour notation is the rule in written communication--and written communication is all that need concern us in a wiki.

I still have the problem of distinguishing between am for /ante meridiem/ and AM for /Anno Mundi/. I propose that in English one browse for a lowercase "am" for a time annotation and an uppercase "AM" for calendar selection. This applies everywhere except in Russian. In Russian, the equivalents of am/pm are пн/пд, whereas the /Anno Mundi/ abbreviation is АМ, which looks like a Roman "A" and "M" but, I suspect, is different in Unicode.

Korean presents a special problem; see

<http://en.wikipedia.org/wiki/Date_and_time_notation_by_country#Korea_.28South.29>

for details. Basically, the year, month, day, hour, minute, and second are all suffixed. The unique am/pm indicators /precede/ the time. 12-hour conventions apply in Korean writing. All of this strongly indicates that a special set of regexes will be required for Korean at least, and possibly also for every other language.

Chinese does the same thing as does Korean, or sometimes Chinese uses typical ISO8601 separators. I suspect that our new calendar system should support both. See

<http://en.wikipedia.org/wiki/Date_and_time_notation_by_country#Greater_China>

for full particulars.

Note: I have found no clue yet to Korean or Chinese notational equivalents of the English AD, BC, CE, or BCE, except that 公元 means CE in Chinese. Chinese also has AM and PM equivalents.

Temlakos


Date and time conventions in various languages:

Deutsch English Español        Français  Italiano Korean Polski Português 
Русский Chinese
AC      BC      a. C    av. J.-C. a.C.            p.c.   a.C.      ДХ
AD      AD      d. C    ap. J.-C. d.C.            a.d.   d.C.      РХ
v.u.Z.  CE      EC      EC        e.v.            n.e.   EC        нэ    
公元
v.d.Z.  BCE     AEC     BCE       a.e.v           p.n.e. AEC
a.m.    a.m.    a.m.    a.m.      a.m.            a.m.   a.m.      пн
p.m.    p.m.    p.m.    p.m.      p.m.            p.m.   p.m.      пд

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