When do companies announce their profits?
Every company is different, but they have until August 31 to report. You will find a timetable of when a company plans to announce their results generally on the company's website under investor information.
I don't think there is a website that gives dates for every company. If someone knows of such a site, could they please post the URL?
Australian Investment Review usually publishes a list of company reporting days, if you look on their website I'm sure you can find it