PI89400: WITH THE FIX FOR PI78252 APPLIED, CEELOCT MAY NOT RETURN THE DST UPDATED TIME

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer reports after dynamically switching to daylight saving
  time (GMT-2), Enterprise COBOL pgms using "ACCEPT FROM TIME"
  command (which invoke CEELOCT / CEEGMTO) continue to return
  previous time (GMT-3)
  
  Some PL/I functions that use CEELOCT / CEEGMT include date(),
  time(), datetime(), days(), and secs() may also be impacted.
  
  PE INFORMATION:
     Users Affected: Customers that are running with fixes for
     apar PI78252 ie PTF UI48801 / UI48802 / UI48771 AND invoke
     the CEELOCT or CEEGMTO LE callable services
  
     User Impact: APAR PI78252 fixed the problem it reported but
     introduced a new problem.  After time is dynamically
     changed, applications that invoke the CEELOCT or CEEGMTO LE
     callable services may continue to report previous time for
     example a DST adjustment made dynamically may not be reported
     correctly by such applications.
  

Local fix

• OPTION 1: If the fixes for PI78252 have not been APPLIED to your
            system then DO NOT apply them. If they have been
            applied but NOT ACCEPTed, then you may back off (i.e.
            SMP/E RESTORE) the fixes.
            This action requires an IPL
  
  OPTION 2: You may install the appropriate level fix (++APAR) for
            PI89400 and IPL the system
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users with PTFs UI48771/UI48801/UI48802                  *
  * installed, who change system time                            *
  * dynamically (i.e., without an IPL),                          *
  * regardless of technique.                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * After applying PI78252, applications                         *
  * may receive an incorrect current local                       *
  * time via Language Environment callable                       *
  * services CEELOCT or CEEGMTO after a                          *
  * dynamic change to the system time, such                      *
  * as a Daylight Saving Time (DST) change.                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  See problem description.
  

Problem conclusion

• The code change of PI78252 has been backed out in this APAR.
  Regarding to the problem reported in PI78252, a document change
  is delivered as below:
  Book: z/OS Language Environment Programming Reference >
  Part 2: Language Environment callable services >
  Chapter 5: Callable services >
  CEELOCT - Get current local date or time >
  Change the first usage notes as below:
  Usage notes:
  | * z/OS consideration - After issuing the MVS command SET
  | DATE, the output value returned by CEELOCT may not
  | represent an accurate date or time.
  Book: z/OS Language Environment Programming Reference >
  Part 2: Language Environment callable services >
  Chapter 5: Callable services >
  CEEGMTO - Get offset from Greenwich Mean Time to local time >
  Change the first usage notes as below:
  Usage notes:
  | * z/OS consideration - After issuing the MVS command SET
  | DATE, the output value returned by CEEGMTO may not
  | represent an accurate date or time.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  106PC1Ÿ UI52529 UI52530 UI52531

Modules/Macros

• CEEYGMTO
  

Fix information

• Fixed component name

  LE FOR MVS & VM

• Fixed component ID

  568819801

Applicable component levels

• R7A0 PSY UI52530

     UP17/12/20 P F712 ­

• R790 PSY UI52531

     UP17/12/20 P F712 ­

• R7B0 PSY UI52529

     UP17/12/20 P F712 ­

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.