Spray tan wwyd

So I have a dilemma. I have a rehearsal dinner on a Friday, the wedding on the Saturday and I want a spray tan. Problem is, my girl isn’t available on Thursday. Would you get the spray tan late Wednesday and hope for it to still be dark by the wedding or would you get it on Friday morning and shower last minute before the rehearsal dinner? I’d have about 5.5-6 hours to let it develop. Not worried about it looking bad if I do it last minute, she does an amazing job and I’ve never had a complaint about her tans but I’m just worried about it potentially being light if I wash it off too fast. But if I go on Wednesday it’ll be light by then too… ugh lol what would you do?