From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: Bug: org-2ft and/or float-time is wrong [9.1.2
 (9.1.2-22-ga2a034-elpaplus @ ~/.emacs.d/elpa/org-plus-contrib-20171023/)]
Date: Tue, 31 Oct 2017 19:23:09 +0100
Message-ID: <87bmknkwhe.fsf@nicolasgoaziou.fr>
References: <CAJr1M6d5ccgteNjMncKeOVfS3uygkpRte4i2Hem4-WOJEBA51A@mail.gmail.com>
	<CAJr1M6cBkr0RoFLN=P0DL=7JrWvSnM2EnepSyjT-+LvSPQ8ngQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:56593)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <mail@nicolasgoaziou.fr>) id 1e9bBy-0004XR-6i
	for emacs-orgmode@gnu.org; Tue, 31 Oct 2017 14:23:14 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <mail@nicolasgoaziou.fr>) id 1e9bBx-0008NA-DT
	for emacs-orgmode@gnu.org; Tue, 31 Oct 2017 14:23:14 -0400
Received: from relay4-d.mail.gandi.net ([2001:4b98:c:538::196]:55625)
	by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)
	(Exim 4.71) (envelope-from <mail@nicolasgoaziou.fr>)
	id 1e9bBx-0008MG-7G
	for emacs-orgmode@gnu.org; Tue, 31 Oct 2017 14:23:13 -0400
In-Reply-To: <CAJr1M6cBkr0RoFLN=P0DL=7JrWvSnM2EnepSyjT-+LvSPQ8ngQ@mail.gmail.com>
	(Allen Li's message of "Mon, 30 Oct 2017 21:33:37 -0700")
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode/>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: "Emacs-orgmode"
	<emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
To: Allen Li <vianchielfaura@gmail.com>
Cc: emacs-orgmode@gnu.org

Hello,

Allen Li <vianchielfaura@gmail.com> writes:

> Removing the t for zone fixes it

[...]

> I will also note that the FIXME comment in org-parse-time-string
> suggests that it too is not handling timezones correctly.  In fact,
> perhaps org-parse-time-string should not take a zone argument, since
> Org does not support timezones thus the only valid value for zone is
> nil.  I suspect that org-display-custom-time, another caller that
> passes t for zone, is also timezone incorrect.

Both changes were introduced to fix some issues with daylight saving
time, in particular in clock reports. It is not possible to simply
suggest reverting them without considering the underlying issues.

I agree there are issues to fix. Unfortunately, the solution you suggest
is not sufficient.

> tl;dr time is hard.

I agree.


Regards,

-- 
Nicolas Goaziou