Best Time End Auction

best day and time for e-bay auctions to end please?
I have been timing mine to end on Saturday but I wonder if I may have more interest ending them midweek when perhaps less people go out.
I end mine on a Saturday at about 16:00, most people are in and getting ready to go out, plus their in a weekend frame of mind and it gives me a chance on Sunday to wrap the items and print the paperwork.
How to Boost Your Auction Profits by 200% Part 2