On Nov 9, 2011, at 00:41, Rob van der Heij wrote:

> On Wed, Nov 9, 2011 at 8:17 AM, John P. Hartmann <[email protected]> wrote:
>> The system control file specifies the future timezone changes.
>> 
>> SET TIMEZONE must be issued to change the timezone of a running
>> system.  This drives an interrupt in the virtual machines for them to
>> recalculate their local time.  It would appear that CMS fails to do
>> so.
> 
> Yep. I recall CMS builds on "TOD at last midnight" as determined
> during IPL CMS.
> 
But somehow Rexx time() gets it right.  I get output:

Started at:     00:30 for 1/ascii/recscan.Rexx/1.26
Delaying until: 24:30 2011-11-01
Delayed  until: 24:30  at 2011-11-02 00:30:00
Delaying until: 24:30 2011-11-02
Delayed  until: 24:30  at 2011-11-03 00:30:00
Delaying until: 24:30 2011-11-03
Delayed  until: 24:30  at 2011-11-04 00:30:00
Delaying until: 24:30 2011-11-04
Delayed  until: 24:30  at 2011-11-05 00:30:00
Delaying until: 24:30 2011-11-05
Delayed  until: 24:30  at 2011-11-06 00:30:00
Delaying until: 24:30 2011-11-06
Delayed  until: 24:30  at 2011-11-06 23:30:00
Delaying until: 24:30 2011-11-06
Delayed  until: 24:30  at 2011-11-07 23:30:00
Delaying until: 24:30 2011-11-07
Delayed  until: 24:30  at 2011-11-08 23:30:00
--- End of List ---

from (excerpted):
   ...
   do Day = 1
       'output Delaying until:' When date( 'S', , , '-' )
       'callpipe literal | *.output.FLSH:'  /* Flush buffer so far.  */
       'callpipe literal' When '| delay | var stopped'
       'output Delayed  until:' value( 'stopped' ) 'at' date( 'S', , , '-' ) 
time()
       'callpipe literal | *.output.FLSH:'  /* Flush buffer so far.  */
       if symbol( 'stopped' )<>'VAR'  then leave Iter
       When = '24:30'  /* Delay until 07:00 "tomorrow".  */
       if Date( 'Weekday' )=='Tuesday' then leave Day;  end Day
   ...

I don't get Kris's loop because I cautiously chose a time after midnight
rather than just before.

-- gil

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