Bandai Namco have announced dates of four different closed beta sessions along with the date when pre-loads will start as well as when beta keys will be sent out. On that note, you can now apply for closed beta participation, here is how.
First, the important stuff - here is the sign up form you will need to fill if you want a chance to participate in the beta. It is pretty straightforward, as the form requires only your name and email. Afterwards, you will need to select your preferred platform - PlayStation 4 or Xbox One since these beta tests will be available only on consoles.
Beta sign up period has already commenced and will continue until Tuesday, 09 October 2018. Three days after that, on 12 October 2018, pre-loads will start along with distribution of beta keys.
First closed beta session will start the same day, on Friday, 12 October 2018 at 05:00 AM PT / 14:00 CEST and will last for two hours. This session seems to be aimed at European fans due to time zone alignment but closed beta session #2 will happen just a one day later, at 08:00 AM PT / 05:00 AM CEST so American fans will get their first taste of the barber nightmare crossover.
Third closed beta session will presumably happen on Sunday, 14 October 2018, at 09:00 AM PT or 18:00 CEST so both US and Europe based players will have adequate time of the day to play Jump Force. The official post on Bandai Namco's website either doesn't have the correct date or the sessions are not in chronological order as session #3 is listed as happening before session #2 on the same day, 13 October 2018. Either way, we suggest you keep an eye out, just in case.
Fourth and final closed beta session will go on from 20:00 PT / 05:00 AM CEST on Sunday, 14 October 2018. Bear in mind that there is a limited number of beta keys so the sooner you apply the better. Each session will last for two hours so you might want to clear up your schedule ahead of time. Good luck!