No fucking chance Saturday tourny would work better... People are out Friday Saturday...
If you can't go tournies on a Sunday cuz of work Monday then you must be getting up at like 5am or something otherwise you finish the tourny and can easily get plenty of sleep...
Maybe if your in U.K. or france but for counties that are further east the tournaments can start at almost 10-11pm and finish past midnight for them, especially since we are now in GMT instead of BST.
I do agree Sunday's is probably better for more people since, for the reasons stated above, people go out late Saturday because there is no work Sunday. But there is still a majority of people that stay up very late to play tournaments due to time zones.