It would be for the front end. The main problem is that users get an error if they don’t use the right format, so having a default not only makes it easier, but it also gives them the format if they want to change. (I realize that they can click on the calendar and click on the date, to see the format, but they don’t always do that).
For anyone else reading this, I ended up putting 0000 as the default. What that does is essentially sets the job to publish as of the start of the day they published it on. Since that means it is essentially back-dated, then it will automatically show on the site unless they change it. Seems to be working ok as of right now.