Conditional change to a cell


My sheet is setup with several columns but I need the formatting applied over two of them. Titles are NIGO date and is a date that the item was added to the sheet. The second is a drop it titled Advisor Action Needed and is a drop down list of statuses.

I need two things:

I need the cell for Advisor Action Needed to change color if the date in the NIGO date field is three days old

I then need it to both change color and the actual status at 5 days old

(preferable if I can count business days only).

I've tried to setup conditional formatting but I can't choose a condition to go X days beyond a date and I'm not sure how to instruct it to change the status rather then just change the color or font, etc.