PH54323: UPDATE ICU4J TIME ZONE DATABASE to 2023A

APAR status

• Closed as program error.

Error description

• When using  Africa/Cairo and Daylight saving time (DST) has been
  restored and used in Egypt from end of April. The problem is
  that the ICU shipped with WebSphere (WAS 8.5.5.23) still
  continues to use EET (UTC+2) and not EEST (UTC+3)
  

Local fix

• Temporarily using "Europe/Athens" in the JVM property to get the
  right time.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server in Egypt.                            *
  ****************************************************************
  * PROBLEM DESCRIPTION: The ICU4J library included with         *
  *                      WebSphere Application Server does not   *
  *                      properly reflect current time zone      *
  *                      rules in Egypt.                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  WebSphere Application Server includes the open source
  component ICU4J (International Components for Unicode for Java)
  which contains a time zone database.
  As governing bodies around the world change rules related to
  time zones, time zone boundaries, UTC-offsets and daylight
  saving time, the time zone database in the ICU4J library needs
  to be updated. This allows WebSphere Application Server to
  access the correct local time.
  The database used by ICU4J is maintained by IANA ( Internet
  Assigned Numbers Authority - https://www.iana.org/time-zones ).
  

Problem conclusion

• This APAR updates the ICU4J time zone database to version
  2023a. No source code is updated.  Only the time zone tables
  are updated.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.24 and 9.0.5.17. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels