emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Maxim Nikulin <manikulin@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: org-table change time from UTC to other timezones
Date: Mon, 14 Dec 2020 00:03:35 +0700	[thread overview]
Message-ID: <rr5hhg$ol7$1@ciao.gmane.io> (raw)
In-Reply-To: <CAF-1L2SYAO10zu6uWSgU_M637cWaTD8Rfh88yFT8R-6TR0GaDw@mail.gmail.com>

2020-12-13 Alan E. Davis wrote:
> I think R would not be too unwieldy as a hammer here.  My use case  is a 
> humble one: just take a several clock times in HH:MM format (utc) and 
> adjust to  another timezone by adding or subtracting the relevant number 
> of hours.  The day of week is not important; i will have to deal with 
> it.  I did imagine a conditional subtraction by adding of subtracting 
> 24:00 as needed.

Likely your approach is suitable for you and you could ignore my 
comments. I just live in a city having longitude that should be (and it 
was) the border between time zones, so majority do not like any 
decision. Since cancellation of DST 10 years ago, local time has been 
shifted 2 times...

To get time offset for some timezone, it is necessary to specify 
timestamp, so a date is required in addition to time. Namely day of week 
is mostly irrelevant.

Time transitions are usually arranged at night when most of people are 
not active. Astronomers is a different case, that is why their chance to 
face a timezone bug is higher.

When operations with arbitrary time zones are not required and a process 
could be run with TZ variable set to desired time zone, libc functions 
should work correctly. I have not tried elisp functions 

A bookmark for those who still hopes to avoid complications with 
time-related operations

Falsehoods programmers believe about time

  reply	other threads:[~2020-12-13 17:04 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-09 10:20 org-table change time from UTC to other timezones Alan E. Davis
2020-12-09 11:34 ` Tim Cross
2020-12-10  8:10   ` Alan E. Davis
2020-12-10 19:01     ` Tim Cross
2020-12-11  0:12       ` Alan E. Davis
2020-12-11 15:40         ` Maxim Nikulin
2020-12-11 22:44           ` Alan E. Davis
2020-12-12 16:04             ` Maxim Nikulin
2020-12-12 22:52               ` Tim Cross
2020-12-13  3:14                 ` Alan E. Davis
2020-12-13 17:03                   ` Maxim Nikulin [this message]
2020-12-14  2:29                     ` Alan E. Davis
2020-12-12  3:31           ` Jean Louis

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='rr5hhg$ol7$1@ciao.gmane.io' \
    --to=manikulin@gmail.com \
    --cc=emacs-orgmode@gnu.org \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox


This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).