My experience was the opposite - running the patch on my X30High didn't work, but the desktop version did update my PPC.
This morning I picked my X30 up from the dock & it flashed the "clock has been updated" message ... later, I noticed that the time was two hrs ahead, not one. This remained the case until I got home & synced the unit & now the time is correct.
The entire patch journey has been pretty lame considering they have known since '05 that this would be taking place ... and they are the biggest software developer in the world!!
Barry