I don't know about UK time but Europe and America will be back "in sync" at the time of the race as America (US + Canada, at least) switch time early Sunday morning (2AM I believe) and Euro already did.
So, unless I'm mistaken, the race should be at the usual time for the Euros and 6 hours earlier than usual for America (unless you live in one of the little "exception" zones). Is that easy enough?