Safari is very annoying as it doesn't pick up your setting as UK and date format as dd-mm-yyyy.
They are as bad as Microsoft
So here is a way of fixing it:
http://notesninjas.com/$preferences.nsf?OpenPreferences
^^^ change your domain
and then go to regional and change your settings, if the default custom is US then try changing it.
Very annoying.
from:http://www.ibm.com/developerworks/lotus/library/ls-WebPref/index.html