Judging purely by my phone, I'd say Friday evening. That said, I tend to sack off about 6pm Friday and not work again until Sunday as so many between those times are pure TW just wanting a text wank.
It does depend on your area though. I used to regularly work Saturday daytimes near a major airport and was always busy there. Pre-pandemic though 😕 But if you are near an industry hub it might be worth it.
I'd certainly rather do daytime than deal with Friday night revelers.