Add Mandurah (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 Mandurah (Australia) is AWST, whose offset is GMT+8 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Mandurah, Australia is "Australia/Perth"

It currently does not observe Daylight Savings Time.