Ticket sales for ACO members start on Tuesday next at 10-00hrs.
               Is that UK or French time ?

Yes, it's central european time.
9am UK

Cheers Barry

HAs anyone worked out yet if it's just GEs on Tuesday (as originally stated by the ACO) or if they are now including camping now they have released the, frankly eye-watering, prices?

Both will be available.  I asked the question direct and got that answer.