Our twice-weekly EC Zoom calls are as follows:
In America,
Wednesdays, 3pm for me in California, which is Thursday 8am for you in Tasmania.

And Sundays, 6am for me in California, which is Sunday 11pm for Tasmania.

Tasmania may move their clocks at different times than we do in America... so adjust for that when those Daylight Savings days happen. Here's the link:
https://us06web.zoom.us/j/4550284795?pwd=UjBHQ0J2V1pOc21SOExTR2N1UXNpQT09
Gary