The checkbox for "Automatically adjust clock for daylight saving time" is not shown at the dialog box "Date Time Properties" with my XP SP2 machine. How can I fix it?

Q: The checkbox for "Automatically adjust clock for daylight saving time" is not shown at the dialog box "Date Time Properties" with my XP SP2 machine. I installed the latest patch for the DST2007 fix. How can I fix it?
A: What is your current time zone setting? This will dictate whether that setting is enabled or not.