You will only get three warnings of how many seconds you have left to talk (at 1 minute, 30 seconds, and 0 seconds). On the real day, the judges will only hold up those three cards to inform you.
A timer will be shown on the screen to indicate how much time has passed. On the real speech day, you will NOT have access to the exact time, just the three cards they will show you.
Press Start when you're ready to begin.