The Singapore Timezone does not appear to be recognized by java.

For example, take this test program (partly stolen from another bug report):

import java.util.Date;
import java.util.TimeZone;
 
public class date {
    public static void main(String argv[]) {
        Date d = new Date();
        System.out.println("java date: " + d.toString());
        System.out.println("java timezone: " + TimeZone.getDefault().getID());
    }
}

Testing with Solaris_JDK_1.2.1_04c and Solaris_JDK_1.2.1_03a, we get this:

$ TZ=Singapore;export TZ
$ date
Thu Jun 15 22:36:41 SGT 2000
$ java date
java date: Thu Jun 15 22:36:45 CST 2000
java timezone: Asia/Shanghai

It comes up with China Standard Time, which is the same offset.

If we explicitly tell java the timezone, we get this:

$ java -Duser.timezone=Asia/Singapore date
java date: Thu Jun 15 22:37:45 GMT+08:00 2000
java timezone: Asia/Singapore


For a workaround, we recompiled the DateFormatZoneData_en_US.class file and put it in /usr/java/jre/classes/java/text/resources. (See workaround for changes). We can get the timezone abbreviation to come up correctly, but only if we explicitly set the user.timezone.

$ TZ=Singapore;export TZ
$ java date
java date: Thu Jun 15 22:54:27 CST 2000
java timezone: Asia/Shanghai
$ java -Duser.timezone=Asia/Singapore date
java date: Thu Jun 15 22:54:46 SGT 2000
java timezone: Asia/Singapore