From the 1st Sunday of April to the last Sunday of September,
New Zealand is four hours ahead of 99% of Western Australia.
From the last Sunday of September to the 1st Sunday of April,
New Zealand is five hours ahead of most of Western Australia.
6 PM Western Standard Time (WST, UTC+8) =
10 PM New Zealand Standard Time (NZST, UTC+12) =
11 PM New Zealand Daylight Saving Time (NZDT, UTC+13)