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DSTv23 Timezone Patches Available for E-Business Suite 12

Steven Chan
Senior Director
Hourglass iconIf your E-Business Suite Release 12.x environment is configured to support Daylight Saving Time (DST) or international time zones, it's important to keep your timezone definition files up-to-date. They were last changed in June 2014 and released as DSTv22.  

DSTv23 is now available and certified with Oracle E-Business Suite Release 12.x. The DSTv23 update includes the timezone information from the IANA tzdata 2014f and includes Russia's reintroduction of "winter time" when the clocks will be turned back one hour on October 26, 2014.  It is cumulative: it includes all previous Oracle DST updates. 

Is Your Apps Environment Affected?

When a country or region changes DST rules or their time zone definitions, your Oracle E-Business Suite environment will require patching if:

  • Your Oracle E-Business Suite environment is located in the affected country or region OR
  • Your Oracle E-Business Suite environment is located outside the affected country or region but you conduct business or have customers or suppliers in the affected country or region

The latest DSTv23 timezone definition file is cumulative and includes all DST changes released in earlier time zone definition files. DSTv23 includes changes to the following timezones since the DSTv22 release:

  • Africa/Cairo, 
  • Africa/Casablanca, 
  • Africa/El_Aaiun, 
  • Asia/Taipei, 
  • Asia/Yekaterinburg, 
  • Asia/Omsk, 
  • Asia/Novosibirsk , 
  • Asia/Krasnoyarsk, 
  • Asia/Irkutsk,  
  • Asia/Yakutsk, 
  • Asia/Vladivostok, 
  • Asia/Magadan, 
  • Asia/Sakhalin, 
  • Europe/Kaliningrad, 
  • Europe/Moscow, 
  • Europe/Simferopol, 
  • Europe/Volgograd, 
  • Egypt, 
  • ROC, 
  • W-SU.

What Patches Are Required? In case you haven't been following our previous time zone or Daylight Saving Time (DST)-related articles, international timezone definitions for E-Business Suite environments are captured in a series of patches for the database and application tier servers in your environment. The actual scope and number of patches that need to be applied depend on whether you've applied previous DST or timezone-related patches. Some sysadmins have remarked to me that it generally takes more time to read the various timezone documents than it takes to apply these patches, but your mileage may vary. We've published the following Notes which identify the various components in your E-Business Suite environment that may need DST patches:

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Comments ( 3 )
  • Jeremy Treague Friday, September 19, 2014

    Hi Steven --

    When new DST patches like this one are released by Oracle, will they become visible in the recommendations produced by running the Patch Wizard? We are implementing a global ERP environment on Release 12.2 and plan to enable User Preferred Time Zone support at site level. We weren't aware of the DST patches until seeing this blog article.

    Just want to know if the DST patches will show up as part of the Patch Wizard's patch recommendations - so that we are informed when new ones come out.



  • Steven Chan Friday, September 19, 2014

    Hi, Jeremy,

    If you're doing business in multiple countries, it's important to keep up-to-date with the latest timezone definitions.

    I don't think that these patches are considered to be critical, since everyone's timezone coverage requirements are based upon where they do business. In any case, these are technology stack patches rather than EBS functional or tools-related (e.g. AD/TXK), so these would not be flagged by the Patch Wizard.



  • Steven Chan Monday, September 22, 2014

    Hi, Jeremy,

    A quick follow-up on this:

    I had my documentation team review our formal documentation for references to timezone maintenance requirements. After seeing your comment, it wasn't surprising to find that this wasn't clearly documented.

    Upcoming new editions of our EBS documentation will have pointers to the MOS Note listed above.

    Thank you, again, for your comment. Feedback like this is essential in ensuring that little gaps in coverage are filled.



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