From: "Peter Neilson" <neilson@windstream.net>
To: emacs-orgmode@gnu.org
Subject: Re: Support for a and p suffix for morning/afternoon scheduling
Date: Fri, 25 May 2012 07:12:29 -0400 [thread overview]
Message-ID: <op.weu2q3pcrns8nc@tbear> (raw)
In-Reply-To: <loom.20120525T073746-796@post.gmane.org>
On Fri, 25 May 2012 01:45:14 -0400, Tom <adatgyujto@gmail.com> wrote:
> I use the scheduling prompt very often and I usually
> give times in 8pm/9am/etc. format, because they are conveniently
> short to type.
>
> Today it occured to me the m is unnecessary, because a and p already
> gives the necessary info.
>
> Could we also support 8a and 9p format for times like 8am and 9pm,
> so that the m does not have to be typed when scheduling?
> It's unambiguous, this form is not used for other things AFAIK, so we
> could easily support this shorter form too.
Here is a pedantic excursion through the ambiguity of time...
12a and 12p are ambiguous, as are 12am and 12pm. Which is noon, and which
is midnight? Standards differ. I generally favor, in English, the
unambiguous use of noon and midnight, or 12 noon and 12 midnight.
Unfortunately those terms do not fit into a scenario of abbreviation.
Furthermore, midnight itself is ambiguous unless rendered as 0000 or 2400.
Does "midnight Thursday" refer to the start of Thursday, or to its end?
See this article: http://en.wikipedia.org/wiki/Midnight
One might suggest 12n for noon and 12m for midnight, but this conflicts
madly with prior use of abbreviations borrowed from Latin, where 12m is
meridies (noon) and 12n is noctis (midnight). 12m, noon, is the origin of
the "m" in "am" and "pm" : ante meridiem, post meridiem, for before noon
and after noon.
We probably have little choice but to adopt the obvious standard, "look at
your digital clock," in which (contrary to some published standards) 12:00
AM is midnight and 12:00 PM is noon.
prev parent reply other threads:[~2012-05-25 11:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-25 5:45 Support for a and p suffix for morning/afternoon scheduling Tom
2012-05-25 11:12 ` Peter Neilson [this message]
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