Sum By Week Number Using Array?

I need to calculate and compare the extra number of hours worked less lunch time (0.5h per day) "per day sum by week" and total "per week" :

- number of hours above 40h per week;
- number of hours above 9h per day sum by week;
and keep the higher.

I've nearly found the formula to have extra hours for total week
=SUMPRODUCT(($B$3:$AK$3),--ISNUMBER($B$3:$AK$3),--(WEEKNUM($B$2:$AK$2+0,2)=AN1))-(SUMPRODUCT(--(WEEKNUM($B$2:$AK$2+0,2)=AN1),--ISNUMBER($B$3:$AK$3))*0.5)-40

But for total week I don't know how to sum per week hours above 9+0,5 per day

test extra hour.xlsx