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

[Ihor Radchenko]

Tim Cross <theophilusx@gmail.com> writes:

>> This is not the problem we need to worry about. We can use whatever
>> Emacs provides and rely on future improvements in Emacs where things are
>> deficient. We should not aim for 100% accurate time zone support. Just
>> good enough. It's not Org's job to implement the gory details of time
>> zone support.
>
> I guess we will have to disagree here. If org is going to claim to
> support time zones, then 100% accurate is IMO essential. As it stands
> now, we don't claim TZ support and time calculations are correct on the
> basis they are all done relative to current locale. However, once you
> add TZ information, if you don't apply it consistently and correctly,
> that means the values can no longer be relied upon.
>
> Or to put it in another way - currently, it is well understood where org
> timestamps fall down. However, once you add TZ and provide the
> expectation TZ data will be respected correctly, all bets are off.

I think I need to clarify.
Emacs currently relies on glibc time zone support on Linux.
I am not sure if glibc is 100% accurate, but it should be good enough.
At least, there is no way we can do better ourselves.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>