Timesheet not calculating properly. Looking for help!

Hi everyone!

I have been working on this timesheet document for a while now and cannot seem to get the right formula for my goal.

Very simply, the document has a row for each day of the week. For each day, the fake employee fills out when they began and ended their shift and if they took any breaks. Column G is to add up all the hours between when they started and ended, while Column H then subtracts any break time they had.

H11 is then used to calculate their weekly hours. This is where I run into my issue. I'd love for H11 to carry down to B12, but B12 be capped at 40 hours. Any time an employee goes over 40 hours, we obviously owe them OT. So in this example, the employee worked 46 hours, and 40 of them go into B12, but I can't seem to get the remaining six hours to be dropped into B13. I'm not sure if this is a time vs decimal point issue. I'd love for the G and H columns to be decimal points (5.5 hours vs 5:30 hours) but I couldn't get it to calculate properly with decimal points either.

I've gotten it to the point where only B13 is my problem cell. Anyone able to help get me across the finish line?