Hi Mike,

 

Hmmm, I searched the archives for TZRANGEs but the only hit was your note 
below.  :(

 

Does anybody have a copy handy?  I’d love to look at its “guts”.  :)

 

-Mike

 

From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On Behalf 
Of Mike Walter
Sent: Thursday, March 03, 2011 9:45 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Determining Daylight Savings Time Status

 

Mike,

Search the list archives for TZRANGES EXEC.  It builds the records for SYSTEM 
CONFIG (IIRC by default out to 2042).

If that's not what you are trying to do, maybe the file can be used in your 
EXEC, our you can rip out its guts?

Mike Walter
Aon Corporation

(Sent from the wee keyboard of a Blackberry.)

  _____  

  From: "Michael Coffin" [michaelcof...@mccci.com]
  Sent: 03/03/2011 09:36 AM EST
  To: IBMVM@LISTSERV.UARK.EDU
  Subject: Determining Daylight Savings Time Status

 

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

  _____  


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