I have a sheet. There is a date column for length of task, start and finish of project tasks. The finish column is a formula of length of task plus start (so not in date format). To the right of these dates are quarters with quarter end dates. If the project is being worked on during this quarter, I am to block out the cell with black using conditional formatting. Problem is, when the start date is, say 5/11/19 and end date is 7/20/22, then my boss wants all those quarters to be blocked. I was trying to nest ifs with ands and ors. Anyone know how OR if there is a simpler way?