You have 24 hours to make your move in the games during this tournament.
In order to sign up for the tournament, you must have a history of making moves quickly in the past (averaging less than 3 hours per move over all moves you've played in Online Chess on this website).
Looking at your stats, I see that your current Avg Time/Move is 1hr 45 min.
When I click on a tournament, I see something like this:
Time Control: 24 hours/move
Max Avg Time/Move: 3 hours
So, do you have 24 hours to make your move, or 3 hours? What's the difference in these two items?