"(Roads close on the Mountain section of the Course 1 hour 15 minutes before the start of racing.
Roads close from Barrule Park, Ramsey to The Bungalow 15 minutes prior to the road closing from The Bungalow to Creg Ny Baa – timings for Road Closures will be advised on the relevant day. On the remainder of Course, roads close 45 minutes before the start of racing each day)."

So what time(s) do the 2 sections of Mountain Road actually close? (relative to start of racing)