There's something special about that Friday vibe: work is over, the weekend is coming, and things feel different when you know you can sleep in the next day. So yes, Friday is my poker night.
My favorite is also Sunday because you can go deep without distractions. Plus, most of the big prize pools run then, so it just feels like the perfect day to play.
For me, whenever I can play in peace, it's my favorite day.
Only in terms of prize money, Sundays are usually the best.
But I usually play regardless of the prize money; I play according to my schedule and the tournament types.
I usually prefer playing on weekends. The games feel more relaxed, and there tend to be more casual players online, which makes the sessions more fun and sometimes more profitable. But if I want tougher competition, I'll play during the week.