Should the game be created between 21st 1:00 AM to 24th 1:00 AM or is that just the submission window? Also, what time zone is it in? :)
Ideally it should be built between those times, yep. The idea is to throw together a game in that short period of time (even if it turns out to be not very good - it's about learning!)
The times are GMT (UK)
No problem, good luck!