"The O.C." starts 8:00 pm PST (Pacific standard time, the official american time)
PST = GMT - 8 hours.
UK time = no GMT offset.
*** GMT = Greenwich mean time.
In uk, you are 8 hours ahead. If "the oc" starts 8:00PM (10/march), that's 4:00 AM (11/march) in england.
Then the trailer will be available around 5:00AM there...
I think is it....
EDIT: grammar