Mark,
One thing I can think of is the following scenario :
(1) You have a STCK value in a field in a control block value
(eg a "created" date)
(2) You want to display that in local time
(3) Instinct prompts the developer to add the doubleword value
CVTLTDO to the STCK value and then use STCKCONV to format it nicely
Unless the software maintains some sort of country+timezone+date lookup
table to adjust the TOD value before calling STCKCONV you could end up
being a hour or more out in the displayed local time.
Rob Scott
Rocket Software, Inc
275 Grove Street
Newton, MA 02466
617-614-2305
[EMAIL PROTECTED]
http://www.rs.com/portfolio/mxi/
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Mark Zelden
Sent: 26 September 2006 15:08
To: [email protected]
Subject: 2007 DST Changes
Hi,
I just received an email from someone at IBM Global Services asking me
if IPLINFO would require any changes / updates to support the DST
changes in 2007. I've heard of a lot of companies writing all their
vendors to ask the same question (I guess that is a good thing - wonder
if someone here is doing that).
Does anyone know of any z/OS software that will require changes?
I can't think of anything that does. In fact, I know shops that have
changed over in the past on Friday evening for example instead of Sunday
morning. All the software that runs on z/OS gets its time information
from z/OS, right?
The only "z/OS" fix I can think of would be for z/OS Unix to support
changes to the TZ environment variable. It already supports a way to
specify when DST starts and ends but the default it is based on the
(current) American rules (first Sunday in April / last Sunday in
October). I assume there is or will be a APAR to change the default
behavior. I wonder if the fix will go back beyond currently supported
versions of z/OS? Y2K fixes went back beyond the current supported
releases at the time.
Regards,
Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead Zurich North America
/ Farmers Insurance Group
mailto: [EMAIL PROTECTED]
z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html
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