I think it all depends really. I guess to put it simply a perfect دن is a دن where nothing bad happens. Maybe I'm just at ہوم on the net. Maybe I'm outside with friends. Long as nothing bad happens it's a good day.
A perfect دن for me would be a دن where I am in bed, snuggling with my boyfriend. Eating pizza, and some snacks along with some drinks. <3 Any دن with my boyfriend is a perfect دن for me :)