From: dot@dotat.at (Tony Finch)
Subject: [TUHS] OT: American Culture
Date: Thu, 4 Jan 2018 16:48:48 +0000 [thread overview]
Message-ID: <alpine.DEB.2.11.1801041642570.18998@grey.csi.cam.ac.uk> (raw)
In-Reply-To: <20180104025959.GA34418@eureka.lemis.com>
Greg 'groggy' Lehey <grog at lemis.com> wrote:
>
> A thing that nobody has mentioned, and for which I can't find a
> reference easily: didn't System V have time zone offsets the wrong way
> round? I have some recollection from about 1988.
It's enshrined in POSIX but I believe it goes back earlier than that.
http://pubs.opengroup.org/onlinepubs/9699919799/functions/tzset.html
As I understand it, POSIX TZ offsets are the wrong way round because it
was more convenient to omit the sign on the TZ offsets, and because Unix
comes from America that meant no sign -> west, negative -> east.
Tony.
--
f.anthony.n.finch <dot at dotat.at> http://dotat.at/ - I xn--zr8h punycode
Rockall, Malin: Cyclonic, becoming mainly northeast later , 5 to 7, increasing
gale 8 or severe gale 9 later in Rockall. Very rough or high. Rain or showers.
Moderate or poor, occasionally good.
next prev parent reply other threads:[~2018-01-04 16:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-03 22:49 Norman Wilson
2018-01-04 2:59 ` Greg 'groggy' Lehey
2018-01-04 16:48 ` Tony Finch [this message]
2018-01-04 17:20 ` Warner Losh
-- strict thread matches above, loose matches on Subject: below --
2018-01-03 2:42 Doug McIlroy
2018-01-03 14:19 ` Random832
2018-01-02 16:43 Clem Cole
2018-01-03 13:25 ` arnold
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