[Emacs-orgmode] Re: Midnight and noon in agendas

2006-06-03 Thread Christian Schlauer
Carsten Dominik <[EMAIL PROTECTED]> writes:

> On Jun 2, 2006, at 19:24, Christian Schlauer wrote:
>> Also, 26:00 is against the rules ;-)
>
> That is certainly true, but I see no reason to explicitly forbid them.

Of course not! The "format" is unusual, but very useful.

> This is something that can be easily left at a users discretion, don't
> you agree?

I do. Also, I like how it will look in the agenda: "+h:mm".

-- 
Christian Schlauer



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Re: [Emacs-orgmode] Re: Midnight and noon in agendas

2006-06-02 Thread Carsten Dominik

Hi Christian,

thanks for pointing to the relevant standards.

On Jun 2, 2006, at 19:24, Christian Schlauer wrote:


I see the problem, but I don't like these time formats at all. I'd
prefer if the agenda would show me things that are scheduled "early"
the next day (before 06:00, for example, should be configurable) on
the previous day already (and on the actual day).


I agree that this would be nice, but because the technical way in which 
the agenda is constructed, this would be hard to implement.  The way it 
works is like this:


1. The agenda collects all entries for the given date.
2. The it checks if the entry specifies a time-of day in any way.  
Org-mode is very tolerant in this.  Times may be specified as part of a 
timestamp, but also in many free-format ways.


To implement what you ask for, I would have to collect entries for two 
different dates, check for times, throw away the ones with the second 
date and either not time at all, or a time larger than your limit.  All 
this is possible, but has significant overhead.  The purpose of the 
week agenda is to show entries of the next day at least in close 
proximity to entries of the current day.


Still, this is a good idea, and I will put it on my todo list, 
scheduled for a long winter day evening :-)



Also, 26:00 is against the rules ;-)


That is certainly true, but I see no reason to explicitly forbid them.  
This is something that can be easily left at a users discretion, don't 
you agree?


- Carsten



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Carsten Dominik
Sterrenkundig Instituut "Anton Pannekoek"
Universiteit van Amsterdam
Kruislaan 403
NL-1098SJ Amsterdam
phone: +31 20 525 7477



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[Emacs-orgmode] Re: Midnight and noon in agendas

2006-06-02 Thread Christian Schlauer
Carsten Dominik <[EMAIL PROTECTED]> writes:

> However, it can be useful to schedule something at 24:21 or even at
> 26:00 or so. because if you put such a date on your agenda for the
> next day, you might find out too late

I see the problem, but I don't like these time formats at all. I'd
prefer if the agenda would show me things that are scheduled "early"
the next day (before 06:00, for example, should be configurable) on
the previous day already (and on the actual day).

Also, 26:00 is against the rules ;-)

,[ http://en.wikipedia.org/wiki/ISO_8601 ]
| hh refers to an hour between 00 and 24, where 24 is only used to
| notate the midnight at the end of a calendar date
`

,[ http://en.wikipedia.org/wiki/24-hour_clock#Midnight_00:00_and_24:00 ]
| Time-of-day notations beyond 24:00 (such as 24:01 or 25:59) are
| neither commonly used nor covered by any relevant standards,
| although they have been seen on rare occasions in Japan.
`

-- 
Christian Schlauer



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Re: [Emacs-orgmode] Re: Midnight and noon in agendas

2006-06-02 Thread Carsten Dominik


On Jun 2, 2006, at 16:11, Michael Olson wrote:


Carsten Dominik <[EMAIL PROTECTED]> writes:


It seems to me that the logic would be a bit better to schedule these
show uo as 0:00 and 0:21.  If you wanted to put something at midnight
at the end of the day you would then have to use 24:00 and 24:21.

Opinions?


That would have the nice effect of giving people more hours in a day.
I'm sure everyone could use that.  :^)



Yes, indeed a funny effect.  However, it can be useful to schedule 
something at 24:21 or even at 26:00 or so.  because if you put such a 
date on your agenda for the next day, you might find out too late


- Carsten



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[Emacs-orgmode] Re: Midnight and noon in agendas

2006-06-02 Thread Michael Olson
Carsten Dominik <[EMAIL PROTECTED]> writes:

> It seems to me that the logic would be a bit better to schedule these
> show uo as 0:00 and 0:21.  If you wanted to put something at midnight
> at the end of the day you would then have to use 24:00 and 24:21.
>
> Opinions?

That would have the nice effect of giving people more hours in a day.
I'm sure everyone could use that.  :^)

-- 
Michael Olson -- FSF Associate Member #652 -- http://www.mwolson.org/
Interests: Emacs Lisp, text markup, protocols -- Jabber: mwolson_at_hcoop.net
  /` |\ | | | IRC: mwolson on freenode.net: #hcoop, #muse, #PurdueLUG
 |_] | \| |_| Project involvement: Emacs, Muse, Planner, ERC, EMMS


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[Emacs-orgmode] Re: Midnight and noon in agendas

2006-06-02 Thread J. David Boyd
Carsten Dominik <[EMAIL PROTECTED]> writes:

>
> Should 12am be listed as 0:00 or as 24:00?
> Should 12:21am be listed as 0:21 or as 24:21?
>

I vote for 0:00 and 0:21

Dave in Largo, FL



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