Baart
EAch test is about 20 mins each, ATC test is about 15 mins. Cubes i believe had 40 question in 20 mins, diagram about 50, numeracy 40 i think. The first hour is to get papers out and back in and 2 tests, if you apss that then you stay for next test etc....
With regards to MATS part 1 , i think that is way to in depth for the interview stages, you wont need any of it until college, and YES you will have to know all of it then. Dont get too bogged down with it now. Learn the document they give you back to front, brush up on your mental maths and you will be fine.
LEMONY- Congrats to you, very well done, cant imagine how that feels, last chance coming up !!!