Fixed date
Is this is a date that never, ever, ever changes, ever? Or is this a date that maybe changes only rarely (yearly???)
If it is a date that only rarely changes, I would put the date in its own table. Then you can use it on multiple forms and/or reports, and when it finally does change, just change that one table. You could do a lookup to find it, or join to it (for example, if its the last date of your fiscal year, the primary key might be year, and you could join based on that).
If it never, ever, ever changes (the company's founder's birthday, and therfore a company holiday???) then it can be hardcoded.