total ABS(L42)+12-ABS(L41)
l42=1:30AM ,l41=5:00pm

lunch==IF(AND(HOUR(K43)<6,HOUR(K43)<18),0,($A1))

this should be total hours worked (5 days) but coming up with
#value!=SUM(B43-12,E43-12,H43-12,K43-12,N43-12)
total sum should work, but...doesn't =SUM(B39-12,E39-12,H39-12,K39-12,
N39-12)