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

A fix is available

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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 number

    IZ68046

  • Reported component name

    AIX 610

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2010-01-13

  • Closed date

    2010-01-13

  • Last modified date

    2013-03-29

  • 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

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Document Information

Modified date:
29 March 2013