Extended driving period over Fixed Week Divide

Sorry about this guys I know there have been previous threads on this but for the life of me, I can’t find them. Anyway, here it is for those who are interested.

Question: Having increased driving time twice above 9 hours already in the Fixed Week, if I do another 10 hour drive on the Sunday, starting let’s say at 18:00 - which week would it be allocated to?

I now have a written response from the DVSA indicating that it can be treated in effect like Weekly Rest that spans the Fixed Week Divide - namely in either week so in effect it can be done as per the above scenario but would need to be allocated to the second Fixed Week.

Maigret:
Question: Having increased driving time twice above 9 hours already in the Fixed Week, if I do another 10 hour drive on the Sunday, starting let’s say at 18:00 - which week would it be allocated to?

It will be allocated to week 2 because you started the 9 hour drive time extension after midnight on sunday