4 Jan
2018
4 Jan
'18
4:49 a.m.
Random832 (a good year for randomness, that):
Who says right is positive?
=====
Good question.
Norman Wilson
Toronto ON
Left-handed
4 Jan
4 Jan
8:59 a.m.
New subject: OT: American Culture
On Wednesday, 3 January 2018 at 17:49:31 -0500, Norman Wilson wrote:
Random832 (a good year for randomness, that):
Time here is round 14:00 UTC+11. UTC time is 3:00, so UTC+11 = 14:00
makes sense to me. UTC-11 = 14:00 doesn't.
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.
Greg
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Who says right is positive?
Good question. 
10:48 p.m.
New subject: OT: American Culture
Greg 'groggy' Lehey <grog(a)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.
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Moderate or poor, occasionally good.
11:20 p.m.
New subject: OT: American Culture
On Thu, Jan 4, 2018 at 9:48 AM, Tony Finch <dot(a)dotat.at> wrote:
Greg 'groggy' Lehey <grog(a)lemis.com>
wrote:
There's also a time interval measurement convention from the high precision
time keeping world that has negative offsets 'forwards' and positive
offsets 'backwards' which this matches. It sure was confusing to me when I
first encountered it when the time scientists were telling me the
measurements were backwards...
Warner
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.
2326
days inactive
2327
days old
3 comments
4 participants
participants (4)
-
Greg 'groggy' Lehey -
Norman Wilson -
Tony Finch -
Warner Losh