How long is a Masters game, and how do carnivals differ?

A game is normally 50 minutes (2 x 25 minutes) with a five-minute half-time interval. The two teams and the referee may agree to vary the duration, but it must not exceed 50 minutes.

At multiple-game festivals and carnivals, play is reduced to a maximum of 30 minutes (2 x 15 minutes), with a five-minute half-time break.

Other carnival variations: the playing area may be reduced in accordance with the event rules, and the maximum squad size may be increased. All games are played under the Code of Conduct / Fair Play of the local governing body.