emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Kevin Brubeck Unhammer <unhammer@fsfe.org>
To: emacs-orgmode@gnu.org
Subject: Re: Timezone/Encoding issues when exporting as ics and importing to Google Calendar
Date: Thu, 15 Mar 2012 08:29:48 +0100	[thread overview]
Message-ID: <87ehsu9v9v.fsf@fsfe.org> (raw)
In-Reply-To: <87tyc17knp.fsf@member.fsf.org>

Tassilo Horn <tassilo@member.fsf.org> writes:

> Nick Dokos <nicholas.dokos@hp.com> writes:
> Hi Nick,
>>> 2. Timezone: I live in Germany and thus all my timestamps are CEST.  The
>>>    exported ics file properly declare X-WR-TIMEZONE:CEST.  However,
>>>    since we also have DST, in summer all appointments show up 2 hours
>>>    late, and in winter my appointments show up 1 hour late.  Is there
>>>    anything I can do about it?  The google calendar settings have CEST
>>>    as timezone...
>> I don't know if this is the problem you are running into, but
>> icalendar--convert-tz-offset is buggy as-is: it looks as if additional
>> work was planned for it, but it never got done.  In particular, it
>> assumes there is an RRULE in the icalendar file and does not translate
>> timezones otherwise.
> I don't know the iCalendar spec so I don't know what an RRULE is.  But
> as far as I can see, `icalendar--convert-tz-offset' is used while
> converting an ics file to the diary format.
>> Reading your mail again, I guess you are having problems in the
>> other direction,
> Right. ;-)
>> but IME, if there is a bug somewhere, there is at least one more going
>> the other way :-)
> Probably.  Looking at the ical spec, this X-WR-TIMEZONE property is an
> optional extension nobody has to obey.  Org exports the times like
>   DTSTART:20110317T091500
> which means "local time".  So probably the google server has UTC as
> local time, my preferences say I want to use Berlin-time, so all events
> get two hours added in summer.
> Now I've tried to explicitly set the timezone information using
>     org-icalendar-timezone "Europe/Berlin"
>     org-icalendar-date-time-format ";TZID=%Z:%Y%m%dT%H%M%S"
> and now the events are like
>     DTSTART;TZID=EUROPE/BERLIN:20110322T140000
>     DTEND;TZID=EUROPE/BERLIN:20110322T160000
> However, that doesn't change anything in google calendar...
> Finally, I've set GMT+0 as my current timezone in google calendar, and
> now my appointments are shown correctly.  Ok, that's not really a
> solution but only a workaround...
> Oh, there's another possibility; setting
>     org-icalendar-date-time-format ":%Y%m%dT%H%M%SZ"
> which then seems to correctly recalculate the local times in my org
> files to GMT.  So for an entry that starts at 14:30 and ends an 16:30,
> that's what exported.
>   DTSTART:20100518T123000Z
>   DTEND:20100518T143000Z
> Looks good, I'd say.  But when importing that to google calendar, it
> shows that entry starting at 16:30 and ending at 18:30 Berlin-time.  Now
> what's that?!?
> Oh, it seems to be some caching issue.  Although the new ics file is on
> the server now, it seems that a reload of google calendar doesn't
> reimport all imported calendars.  So I'll wait a bit and report back
> what methods work (explicit TZIDs and/or export as UTC).

Did you ever find out what methods worked best? I just bumped into the
same problem with 30boxes, which shows

DTSTART:20120228T180000Z as 19:00 (should be 18:00)
DTSTART:20120228T180000 as 00:00 the day after

(the web calender is set to GMT+1, the exported ics shows

I guess I'll have to upgrade my org-mode version (6.33x) to get

best regards,
Kevin Brubeck Unhammer

  reply	other threads:[~2012-03-15 11:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-07 12:32 Tassilo Horn
2011-06-07 13:48 ` Nick Dokos
2011-06-07 14:58   ` Tassilo Horn
2012-03-15  7:29     ` Kevin Brubeck Unhammer [this message]
2012-03-20 11:41       ` Bastien
2012-03-20 12:33         ` Kevin Brubeck Unhammer

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=87ehsu9v9v.fsf@fsfe.org \
    --to=unhammer@fsfe.org \
    --cc=emacs-orgmode@gnu.org \
    --subject='Re: Timezone/Encoding issues when exporting as ics and importing to Google Calendar' \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Code repositories for project(s) associated with this 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).