It wasn't clear to me that you wanted a general-user solution, or an
algorithm that would project years ahead, or simply a utility to be
run from MAINT.
The general-user, long-range solution is also a Rexx/Pipe SMOP: there
are dozens of websites devoted to Daylight Saving Time tables and
calculators. RxSockets to the rescue!
-Chip-
On 3/3/11 19:30 Michael Coffin said:
The problem is that the executor would need to have access to MAINT CF1.
-Mike
-----Original Message-----
From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On
Behalf Of Chip Davis
Sent: Thursday, March 03, 2011 1:38 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Determining Daylight Savings Time Status
Not to take anything away from the solutions already offered, but
wouldn't a Rexx exec (or pipe) that reads the SYSTEM CONFIG file be a
single-source-data solution? I'd rather depend on the accuracy of an
IBM-supplied file than to worry about making sure my (or someone
else's) file keeps up with the Congress-critters meddling.
Besides, it's a SMOP.
-Chip-
On 3/3/11 14:36 Michael Coffin said:
Hi Folks,
Does anybody have a program or know of a way to determine if a given
date falls within a Daylight Savings Time range? The CP QUERY TIMEZONE
command will show you defined timezones, and which one is active - but
not the start/end dates of the zone.
I'm trying to avoid coding up a hard-coded table in a REXX exec - but
can't for the life of me figure out any other way to do it, and even
though the zones are coded in SYSTEM CONFIG I can't find any way to
query them in VM.
Ideally, I need to do something like: DST=IsThisDST(mm/dd/yy) - and I
only really care about the calendar date (even though DST doesn't
normally "kick in" until 2:00am).
-Mike
