From mboxrd@z Thu Jan  1 00:00:00 1970
From: Carsten Dominik <carsten.dominik@gmail.com>
Subject: Re: bug#9695: allowed date range
Date: Thu, 13 Oct 2011 10:02:10 +0200
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To: Tassilo Horn <tassilo@member.fsf.org>
Cc: emacs-orgmode@gnu.org


On 13.10.2011, at 09:57, Tassilo Horn wrote:

> Eric S Fraga <e.fraga@ucl.ac.uk> writes:
> 
> Hi Eric,
> 
>>> Oh, now I see what's wrong.  All time stamps consist of the date and
>>> then the day's name abbreviation, which is missing with your example.
>>> Correct would be
>>> 
>>>  <2011-10-17 Mon>--<2011-10-30 Sun>
>> 
>> Although the day is optional according to the regexp.  I would
>> definitely like to have the regexp with the space optional as well as
>> there are cases where I want to type the date in directly (not in org
>> mode for whatever reason).  In those cases, it is easy to type
>> 2011-01-01 or whatever but it's not necessarily trivial to determine
>> the day of the week...
> 
> Yes, I agree, although you can use org-time-stamp everywhere (in emacs).
> And you can actually insert timestamps simply by writing
> 
>  <2011-10-13 >
> 
> with the whitespace to make it a valid timestamp.  That will be shown as
> day entry in the agenda, and you might have typed it in using some
> non-emacs text editor on you phone.


> 
> Now, back in org-mode, simply S-<up> and S-<down> on any number, and et
> voila, the missing day name abbrev is added automatically.
> 
>> Actually, interesting thought experiment: does org actually do any
>> consistency checks, comparing the date and the day of the week?
> 
> No, I don't think so.  Manipulating and creating timestamps using the
> provided commands ensures their correctness, but for actual calculation
> the day names are ignored.  It's just for humans.

Just to confirm, this is correct.

- Carsten