There are no hard deadlines. Publishing your article in an Open Access journal requires no extra steps, so in that scenario there is not any need for a deadline. If your funder requires you to deposit in its open repository, you can abide by whatever deadlines they impose; JH will not add an extra deadline. If you submit the author’s final version to JScholarship, you can do that when it fits your schedule. The sooner you do that, the more quickly your article will be accessible and the less likely you are to forget; but JH does not require submission within a particular timeframe.