Getting Maximo Ready for Daylight Saving
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It's currently October and for many people around the word, it means you have to reset your clocks. Some countries in the Southern Hemisphere like Australia and Brazil have already switched to summer time and Daylight Saving Time earlier this month. On the other hand, people in the Northern Hemisphere will soon switch to winter time and off Daylight Saving Time (October 25 for most of Europe and November 1 for North America).
Maximo time might become out of whack if the Java ICU4J library is outdated in the Maximo Application Server or Web Server. i.e. The time displayed in the Calendars, Cron Task Schedule might be off by an hour, especially if the application server and the database server are in different timezones. For your info, ICU4J Time Zone Update Utility (ICUTZU) is a utility that supplies jar files with the latest timezone information and Daylight Savings Time (DST) dates. You need to ensure that operating systems and database timezones are in sync and updated with the latest Java ICU4J library.
1. Stop all the Maximo Application Servers and WebSphere services
2. Go to the web site below for ICU4J Time Zone Update
3. Scroll to the bottom of the web page
4. Save the zip file to a temporary location
Navigate to C:\I
8. ICU4J Time Zone Update Utility (ICUTZU) dialog box pops up
13. Click Search All button
14. Wait for it to finish searching for all the outdated files
DOS prompt will display the backup location of the libraries
16. Rebuild and redeploy maximo.ear file
Below are some DST technotes for your reference: