In that situation we'd take a look at "the Saturday afternoon" or "the Friday night time", having an implicit "with the party". In line with what Kyle reported, we could only say "on" with these, not "in". The expression "free, white, and 20-one" goes back at the least a little https://donovanhmnlj.wikipowell.com/6422943/everything_about_free_government_iphone