We still have the same problem.
Sailing in NZ and I loaded a session for 11th September 2011, my clock started at 11.24am Sept 11 local time.
Session was loaded as Sept 10th and was I unable to edit.
I did edit the date but when loaded it had reverted to the original date and no means to change it later.
No big problem if the thing will accept the date change but not so....