gabriel rosenkoetter on 6 Mar 2007 05:11:55 -0000


[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]

Re: [PLUG] Daylight Savings Time


On Tue, Mar 06, 2007 at 12:01:02AM -0500, Doug Crompton wrote:
> I found the following on a search. Did it on my SUSE 7.3 system and it
> worked - substituting New_York for Montreal ...

One nit (beyond "US/Eastern"'s being mo'betta than accepting "New
York" for the Philadelphia area on moral principles):

This:

> I went to http://www.twinsun.com/tz/tz-link.htm and downloaded
> tzdata2006p.tar.gz. I un-tared this file into a temp directory and
> executed

is actually the wrong time zone data. Not for the US (the Act of
Congress--note, not "law"--changing the date for the start/end of
US DST was passed in 2005, so the 2006p version is nationally safe),
but for some parts of the world. The corner cases in which this
matters are absurd (someone in a locale whose DST date changed in
that time frame passes you dates in seconds-since-epoch format and
you interpret them locally, but explicitly in their locale, and
the timespan includes a DST period), but they may exist (you're
dealing with someone in such a locale, discussing SMTP transmissions,
and they use qmail).

-- 
gabriel rosenkoetter
gr@eclipsed.net

Attachment: pgp92vHt8BivJ.pgp
Description: PGP signature

___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug