The length of a GAA match depends on the particular sport. In Gaelic football, which in Ireland might just be referred to as football or even Gaelic, most matches last for 60 minutes, which is split up into two halves. The exception is senior inter-county games, which last for 70 minutes.
In hurling, the length of matches is also usually 60 minutes other than in senior inter-country games, which are also 10 minutes longer. Youth games might be just 50 minutes in total. Camogie, a variant of hurling that is instead played by women, also has 60-minute matches.
Gaelic handball is different in that games are not time-limited. Instead, teams have to score a certain number of points before their opponent in order to win a match in Gaelic handball.
In GAA rounders, each side has five innings and this is extended to seven innings when the All Ireland Senior Championship Semi-finals and Finals are being played in Ireland.