GNU bug report logs - #56125
28.1; Timezone conversion sometimes wrong for recurring events, when importing ical to diary

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From: Martin Apel <martin.apel <at> 3ds.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 56125 <at> debbugs.gnu.org
Subject: bug#56125: 28.1; Timezone conversion sometimes wrong for recurring events, when importing ical to diary
Date: Thu, 23 Jun 2022 13:55:10 +0200

[Message part 1 (text/plain, inline)]

Hi Lars,


Lars Ingebrigtsen <larsi <at> gnus.org> writes:

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> Martin Apel <martin.apel <at> 3ds.com> writes:
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>> I suppose, that it would be a major undertaking to teach the diary
>> about timezones. As this is a personal diary it probably also doesn't
>> make too much sense. Therefore I wonder, if it wouldn't be the better
>> approach, to split a recurring event from ical into separate events in
>> the diary.
>
> If you have an event that repeats yearly, that's a lot of entries.  But
> more importantly, you don't know a year in advance what the actual time
> is going to be until much later -- gummints change time zone rules on a
> whim, and a 4:00 PM event in New York time may or may not be 22:00
> German time in five months time -- you can't tell in advance.
>
> The only way to make this work reliably is to store the actual time zone
> of the event.

You are right, I thought that these times are fairly fixed. I think for the time being I have to be careful with
appointments created in different timezones, because extending the diary package is beyond my ELisp skills and also
beyond my free time.
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