IZ68046: UNEXPECTED OLSON TZ CHANGE FOR AMERICA/SAO_PAULO. APPLIES TO AIX 6100-04

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Customer configured date and time in AIX using Olson
  defined
  values, as follows in /etc/environment:
  
   TZ=America/Sao_Paulo
  
  NLSPATH=/usr/lib/nls/msg/%L/%N:/usr/lib/nls/msg/%L/%N.cat
  
  In Brazil, DST time change should occur at the third
  Sunday
  of October, however, this change happened at the second
  Saturday instead.
  

Local fix

• n/a
  

Problem summary

• Basically the DST for Brazil is not correct.
  It's supposed to be the 3rd of Oct. but on AIX it occured on
  2nd of Oct.
  export TZ=America/Sao_Paulo ;
  date 10102359.5809 ; sleep 2 ; date
  Sat 10 Oct 23:59:58 2009
  Sun 11 Oct 01:00:00 2009
  This problem also occured last year too..
  but no one reported it.
  export TZ=America/Sao_Paulo ;
  date 10112359.5808 ; sleep 2 ; date
  Sat 11 Oct 23:59:58 2008
  Sun 12 Oct 01:00:00 2008
  Here is the resul to expected output
  export TZ=America/Sao_Paulo ;
  date 10172359.5809;sleep 2 ; date
  Sat 17 Oct 23:59:58 2009
  Sun 18 Oct 01:00:00 2009
  

Problem conclusion

• Update Olson TZ data
  

Temporary fix

Comments

• 6100-04 - use AIX APAR IZ68046
  

APAR Information

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

  IZ64097

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

Fix information

• Fixed component name

  AIX 610

• Fixed component ID

  5765G6200

Applicable component levels

• R610 PSY U830425

     UP10/02/09 I 1000

PTF to Fileset Mapping

• U830425 ICU4C.rte 6.1.4.1