@drewtoothpaste that map is during summer. The particular lunacy is because some states have daylight savings (eg those South-East ones) and some do not (eg the North-East one).
Also, annoyingly, Western Australia doesn't do daylight savings either, so sometimes I'm 3 hours away from my family there and sometimes 2 hours.
@drewtoothpaste it is in fact only three time zones in winter, which makes a lot more sense.
But whether we all keep it or all ditch it, I wish we'd bloody standardise, because it's a pain in the arse having the time change between states!
@catmisgivings @drewtoothpaste It isn't entirely true. The +11 and +10.5 on that map are actually +10 with DST, and +9.5 with DST respectively.
Without DST the map looks like this: