Transfers.
And a lot of the rest of the world I think. Used to work with someone who was Australian. He came over here to teach and was shocked to find out how long it took to get bank transfers to go through. He said it was instant down under.
Unless something has changed in the past year I'm pretty sure it still takes a couple of days in Australia too if it's between different banks. Same bank to same bank is more or less instant though (at least it is with the Commonwealth Bank).