My Solaris 9 box now has the DST patch on it. Yes, I could have simply installed the individual patch, but decided to take this opportunity to bring it down into single-user mode and run the 9_Recommended patchset against it.
Oddly enough, I found that I didn't have the showrev command installed. Because I built a tight little box using the "Core" install (which misses a lot of little items), I keep an online repository of Sun packages for just this purpose. Its one of the smartest things I've ever done.