Re: Equivalent of Linux timezone in FreeBSD

From: Stephen Montgomery-Smith <montgomerysmithstephen_at_gmail.com>
Date: Fri, 28 Oct 2022 01:39:15 UTC 
On 10/27/22 14:32, Warner Losh wrote:
> 
> 
> On Thu, Oct 27, 2022 at 1:26 PM Stephen Montgomery-Smith 
> <montgomerysmithstephen@gmail.com 
> <mailto:montgomerysmithstephen@gmail.com>> wrote:
> 
>     I am attempting to port code that uses an external variable called
>     timezone, which is defined in the Linux file time.h as the number of
>     seconds West of UTC for the current timezone.
> 
> 
> Except it's not completely reliable on linux, since it's not a constant 
> except for
> the few minutes around the current time.... You can't expect it to work 
> around the
> cut-overs of daylight savings time, for example.
> 
>     Is there an equivalent of this in FreeBSD or other BSDs?
> 
> 
> getenv("TZ") will get the timezone for the current process.
> 
> But what are you using this value for?

It is used inside 
https://pub.ist.ac.at/~schloegl/biosig/prereleases/biosig4octave-3.0.1.src.tar.gz 
- look in the file biosig4octave-3.0.1/src/mexSSAVE.cpp at line 205.

Maybe I'll contact the author of the code.