Contestants have to correctly guess the word or phrase before running down to a large QWERTY keyboard mounted on the floor and stepping on the letters to spell it out.
The time remaining determines how many points they get, plus how long each school gets to spend in the maze during round two.
After both teams had completed Timezone, one contestant from each school would enter the maze and attempt to collect the letters of the answer which are hidden in such places as a garbage can, or behind a mock cactus.
After the teams had completed two maze runs, the contestants competed in a video game face off.
By the end of the week, the school with the highest number of points would win a grand prize, which was usually educational computer software or an encyclopedia set.
Other prizes included tickets to the Wet'n'Wild theme park in Gold Coast, Australia.