With help, I created this worksheet where the Array Formula collects hours from D & E column and it sums for each month in G10:I17 (D column) & G26:I33 (E Column).
It works perfect except I just noticed that is is summing Dec 2010 into Dec 2011 totals into I17. It makes sense because it is looking for DEC only, not looking at the year. I need the Dec 2010 totals into a new set labeled in G8 with the total in G9. I tried to change the formatt of the formula to also look at the year, but I was not successful.
Thanks for any help.