A lot of European countries hold elections on Sundays. I guess they’ve found it’s more convenient; in addition, some of them (such as Spain) have a “period of reflection” of a day or two before the election during which no campaigning is allowed. So it works out well if it’s over a weekend.
I like the idea of having a day off for the election. I don't support the day of reflection (due to obvious First Amendment issues), but I support the idea of making the biannual federal election a federal holiday. France recently had something on the order of 85% turnout for the first round! And this round is estimated at >75%. Those numbers put US elections to shame.