Java SE Timezone Updater
Ideally, installing the latest JRE update release is the preferred vehicle for delivering both timezone data updates and other product improvements, such as security fixes. However, if the timezone rules in your region change and you are unable to use the latest JRE update release, then you will need to update the platform's timezone data without altering other system configurations and dependencies
If for any reason you cannot upgrade your JRE software to the most recent update release, you can use a tool that can modify the timezone data within your existing JRE software without requiring you to update the whole platform.
The TZUpdater application will enable you to have an older installed JRE implementation updated with the most recent timezone data.