It should but I am curious about the specifics because I’m in NZ & and when I first viewed the countdown about 30 minutes after the theme announcement the value was something like “2 days 4 hours”.
And I have encountered/observed time-zone/countdown-related oddities on other occasions.
Oh, actually, looking again, I see “Submissions open from July 21st 2023 at 10:00 PM to July 24th 2023 at 3:00 AM” which is clearly more than 48 hours.
Re-reading the Rules/FAQ, in answer to “1 ‧ How long does the jam take?” it states “48-hours, you’ll have to develop and submit within the date and time listed above.”
But I seem to recall in other years the rules more explicitly stated/clarified that the countdown period is longer than 48 hours but “your own” countdown is 48 hours from when you start–but regardless of when you start, your submission has to be made by the global site countdown deadline (which is shown as your local time on the page or in UTC when shown within the hover tooltip).
I also seem to recall this was done to make the potential “Jam Start Time” (& related end time) more convenient for some time-zones (e.g. in terms of what day of the week & what time of day it falls on).
While I kinda understand the motivation for doing things this way, I do find it gets kinda confusing–especially when most jams have a single global 48-hour long, 48-hour countdown and it’s easy to not notice the Kenney Jam countdown doesn’t work the same way (AIUI).
Main thing is, I guess: Don’t accidentally submit a project that you’ve actually worked more than 48 hours on! (Due to mistakenly thinking the Jam Countdown is Your Countdown but you started immediately when the Jam Countdown started.)