[systemd-devel] [PATCH] timedated: Add a LocalOffset property for timezone offset

[Stef Walter]

On 24.03.2015 15:11, Kay Sievers wrote:
> On Tue, Mar 24, 2015 at 2:15 PM, Zbigniew Jędrzejewski-Szmek
> <zbyszek at in.waw.pl> wrote:
>> Exactly because they do not require being upgraded in lock-step, doing
>> conversion to the local time locally is "racy". Assuming we have up-to-date
>> timezone database locally, with the patch that was merged today we can
>> answer the question "what the local time should be remotely", but not
>> necessarily "what the local time is remotely".
>>
>> If we go to the trouble of displaying the remote local time, imho we
>> should do it as the remote does.
> 
> No, we should care about the *state* of the system, and that is its
> time value and its configured location on earth.

Then stop displaying incorrect "presentation" data in timedatectl.

> Systemd has no business in "fixing" the *presentation* logic of these
> values. It is not an API for the timezone database. These tools
> already exist.
> 
> Please stop trying to add insufficient and half-thought-through APIs
> to cover problems which just do not exist in reality or do not need to
> be worked-around by systemd.

This gives us what we need:

$ date '+%s:%:z'

So we'll use that instead of timedated. I'll update the wiki page for
the timedated DBus interface to note parts of it are just not remotable.

Stef