Regarding the time change behavior (automatic, immediate, scheduled, etc.) 
you’ll need to take a look at your equivalent of Defined CPCs > System 
(Sysplex) Time > Adjust Time Zone at the HMC.

Regards,

Kevin

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
Lizette Koehler
Sent: Friday, October 28, 2011 1:18 PM
To: [email protected]
Subject: STP and Time Change

We just implmeneted (it is only a couple of days old) the STP on our z10s.

We have an application dependent on LOCAL time.  So when the clock changes on 
Nov 6, we think this application will see 1am twice and have problems.

So, is this correct, that if we do not use an IPL the STP will adjust the 
mainframe at 2am to 1am?  In which case my bad application will see the 1am 
hour again.

If so, then I think our only option would be to shutdown the LPARs at 1am 
(12:59) and then when it is the time, IPL so that 1am is only seen once by this 
application.  The application itself cannot be down for 1 hour. POLITICS.

Anybody have any other thoughts or comments?

Thanks

Lizette
  

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