SA, NT, and WA all tolerate a time difference, and they do it 12 months of the year.
Just have the entire country on one time zone. Have the eastern states move back an hour, NT and SA forward 1/2 hour, and WA forward an hour. You southerners get your year round daylight saving, and there are no economic issues with the states being on different time zones.
Er.....symon not sure Qld has ever had it......I can remember a trial around 1990 but off course Qld were too dopey to accept it
Northern Territory had daylight savings in 1917 and 1942–1944
Queensland had daylight savings in 1917, 1942-1944, 1971-1972 and 1989–1992
Western Australia had daylight savings in 1917, 1942-1943, 1974-1975, 1983-1984, 1991-1992 and 2006–2009
off course Qld were too dopey to accept it
And that statement there is why I really get pissed off with daylight savings. It is a concept that only makes some kind of perceived benefit to those who live away from the equator. For those who live closer to the equator it has zero benefit, absolute zero. It appears that the concept of not wanting a system that doesn't work for you somehow equates to having a lack of intelligence.
I can take a ribbing as much as anyone else, but to imply that QLD, WA and the NT are stupid for not having daylight saving shows an ignorance far greater than fading curtains and upset cows.