Screening through days of the week including time

[rhhince]

I have a whole column of dates and time. I am trying to screen out
Fridays and 20:00 to prevent trading at that hour. I have formulas
that trade every 20:00 during the week including Friday at that time.
I simply can't get the formula to screen it out. Any help would be
appreciated. Thanks.

Fri 1/20/2012 19:00 0.9342 0.9349 0.9339 0.9347 1088 44.24 40.84
41.56 0
Fri 1/20/2012 20:00 0.9348 0.9356 0.9345 0.9352 1147 47.25 42.44
41.28
Fri 1/20/2012 21:00 0.9353 0.9353 0.9340 0.9341 722 45.73 44.12
41.90 0

 

[Don Guillett]

At least post your formulas. You may want to use if(day(rng