In a recent note, Ed Finnell said:
> Date: Tue, 9 Aug 2005 07:09:56 EDT
>
>
> http://www.indystar.com/apps/pbcs.dll/article?AID=/20050808/NEWS06/508080422/1012/NEWS06
>
> Two biggies that come to mind are schedulers and 'Smart cards'/Crypto cards.
>
> Seems like the time to CUT in production will be after the Fall Back in 2006
> unless you intend to maintain pre/post libraries.
>
There should be no need for a nicely timed CUT in nor for pre/post
libraries. The parameter itself should be algorithmic:
if year<= 1986
DST begins last Sunday in April
elseif year <= 2006
DST begins first Sunday in April
else
DST begins second Sunday in March /* presumably */
endif
... the conversion should work correctly for historic data
as well as for contemporary data. If GNU/Linux, FreeBSD,
NetBSD, OpenBSD, Cygwin, DJGPP, HP-UX, IRIX, Mac OS X, OpenVMS,
Solaris, Tru64, and UnixWare can do it right, why not z/OS?
Linkname: Sources for Time Zone and Daylight Saving Time Data
URL: http://www.twinsun.com/tz/tz-link.htm
-- gil
--
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