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

[Ihor Radchenko]

Tim Cross <theophilusx@gmail.com> writes:

> Consider for example an agenda file where the TODO items have been added
> while I am here in Australia (currently +11:00 w/ DST). Tomorrow I fly
> to Europe where I will be working for the next 6 weeks. I need all my
> TODOs with active timestamps to be updated to Berlin's TZ. How does this
> work?

I am not sure what is the problem.
The timestamps that should stay in local time will be automatically
updated as your system TZ is updated.
The timestamps that should be tied to specific time zone will specify
that required time zone and will thus remain functional.

> The representation of the timestamps is the easy part. It is the
> management, display, calculations, etc where the complications
> arise. From looking at the supported time related functions in Emacs,
> while most of the key ones do have support for passing in time zone
> data, there seems little (if any) code to support the lookup and
> retrieval of time zone data - in particular, ability to lookup time zone
> data for a specific date, not just a location.

But why do we need any time zone data? All we need to converting from
and to internal Emacs' time representation supplying the correct time
zone to it.

Or are you trying to get an agenda where you plan to change the time
zone in the middle? That's indeed a tricky problem, but it is even
solved by any existing calendar app? Do we need to solve it?

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
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