Auctions held on Tuesdays at 5pm attract the most active bidders – at 5.9 bidders per auction – according to national data collected by Ray White from 23,100 auctions over the past 12 months. This is significantly higher than the average of 3.2 bidders per auction, which also happens to be the average number of bidders at auctions held on Saturdays at 11am (the most popular auction time). That said, results do tend to vary in each capital city. “Looking at all auctions held over the year, Tuesday at 5pm is the best time to sell. However in Adelaide and Melbourne, it may also pay to look at Friday night,” explains Ray White Chief Economist Nerida Conisbee.
https://masteryourmortgagenow.com.au/whats-the-best-day-to-auction-your-house-2/