Add Mackay (Australia) to your list and use my-locations table to visually convert it's time to another timezone or city time.
Mouse over the colored hour-tiles and glance at the hours selected by the column.

Current time zone for Mackay (Australia) is AEST, whose offset is GMT+10 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Mackay, Australia is "Australia/Brisbane"

It currently does not observe Daylight Savings Time.