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Re: [FEATURE REQUEST] Timezone support in org-mode datestamps and org-ag


From: Max Nikulin
Subject: Re: [FEATURE REQUEST] Timezone support in org-mode datestamps and org-agenda
Date: Fri, 20 Jan 2023 23:56:04 +0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2

On 20/01/2023 23:09, Thomas S. Dye wrote:
Max Nikulin writes:

Now, if Amsterdam's timezone arbitrarily changes its relation to UTC before the conference takes place, then everyone who participates in the conference must notice this (or miss the start of the conference).

My point is that if timestamp is stored in UTC than it becomes incorrect in the case of time offset change. If such timestamp is stored as local time + time zone identifier then application presenting the timestamp to users will show correct time as soon as zoneinfo data is updated.

A virtual conference is organized by someone in Amsterdam, who sets a start time corresponding to 9AM in Amsterdam at a date some years in the future and invites participants from all over the world.  Now, if Amsterdam's timezone arbitrarily changes its relation to UTC before the conference takes place, then must everyone notice this?  Or, should Org, from the time the arbitrary change is made public, simply adjust the conference time for all the participants in the Amsterdam timezone?

Both variants are possible and a planning application should support them. It is matter of negotiation between the committee and the participants. Timestamp should be stored in UTC only in one case.





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