According to a dating expert from "Match," Hayley Quinn says, "aim for a Wednesday or Thursday evening, or a Sunday brunch. Friday or Saturday nights are likely to be saved for socializing with friends and not seen as worth spending on a first date. Mondays and Tuesdays are also out, as people usually won’t want a late night or to get out of their routine too early in the week."
I never thought about how it makes a difference on the entire date depending on the day! Other people chimed in and said Wednesday was good for them, and the answers all varied, but some agreed that doing a first date on Friday or Saturday could lead to expectations after. Unless you're in for that! Lol