Thank you, it makes more sense now. I thought they all started at 00:00 UTC and continued to a limit.
Is the order pre-defined? Or does the first person/download open up an edition at 00:00 UTC, then the next person/download opens the next edition at 01:00 UTC and so on?
This means that if you need a rare edition, you have to be the first person at the exact beginning of an hour?
Also, does this continue for 24 hours, meaning that 24 editions could be made available during the day?