Hi, I'm new to the boards. So hoping you can help me. I'm using the WORKDAYS formula to calculate due dates for my tasks. I've entered the holidays in the correct format (=Date(YYYY,MM,DD)). The formula will work with the holidays for all except New Year's Day, 1/1. Not sure why. Any insight on this? ![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)