Starting in 2007, the Daylight Saving Time (DST) rules are changing in the United States and Canada. DST now begins on the second Sunday of March and ends on the first Sunday of November. To ensure that your UA installations continue to function correctly, you must install a Java patch.
Installing the Java DST Patch for IBM
Download JTZU as a single .zip package from the IBM developerWorks site http://www-128.ibm.com/developerworks/java/jdk/dst/index.html. Use binary transfer mode where applicable.
The readme file is http://download.boulder.ibm.com/ibmdl/pub/software/dw/jdk/dst/readme.htm.
Create a directory for the files used to run JTZU. For example, /tmp/jtzu or c:\jtzu.
Unzip the JTZU package into the directory you crated. Use the jar utility where available:
jar -xvf <filename>
On AIX, z/OS, Linux, Solaris, and HP-UX platforms, you must set the executable bit for the utility. At a shell prompt, type:
chmod 755 runjtzu.sh
Set the value of NOGUI in the JTZU Settings file to false. The DISCOVERONLY setting is not used.
Run JTZU by executing runjtzu.cmd on OS/2 platforms, or runjtzu.sh on other platforms.
In response to the prompt, select Interactive mode and click Start.
Enter the location of the JRE in the text box or use the Browse button to select the location.
Click Update to perform the time zone update for the selected JRE.