I hope I am available to help you, my apologies if I am not
In Australia the big event day of the week for a Marriage is usually a Saturday when 62% of Australian Weddings are held.
Followed by Friday (15%), Sunday (11%),Thursday (4%), Tuesday and Wednesday (both 3%) and poor old Monday only sees (2%) of Aussie nuptials.
The most popular month to get married in Australia is October (15%) followed by November (12%) then April and September both (10%), March (9%), August (8%) then January and May both (7%), next are February July and December all (6%) while the least popular month is June with (4%) of Australian couples choosing that month to get married in.
The earlier you plan and book your wedding suppliers the more likelihood you will have of getting your preferred venue, photographer or celebrant so after you are engaged it is time to get cracking!
Source Easy Weddings survey of 2300 couples in 2016.