At 3am on Sunday April 3, every state except Queensland, WA and the NT will end daylight saving for the year and clocks will go back an hour. No matter where you live, though, you should spend some time come Sunday morning checking that all your devices — computers, phones, tablets, PVRs and anything else with a networked connection — have the correct time.
There's a long history of devices not correctly adjusting their timing to reflect daylight saving, most recently evident in last year's Apple iPhone bug. The more isolated network problems in WA a couple of weeks ago show that even states which don't adopt daylight saving may experience problems.
If you do have a crucial appointment on Sunday morning, make sure that you've got more than one alarm set to avoid a repeat of the my-iPhone-has-wrecked-my-life experience many people had last year. And if you're travelling, there are extra issues to be aware of.