My question is I'm on fentanyl patch, say I put one on Monday at 7:00pm. When should I change it? Wednesday at 7:00pm? I got confused because I would go Monday to Tuesday 24 hours Tuesday to Wednesday 48 hours then I would put a new one on Thursday morning. So now I think I was going to long. So again am I right now? Put one on Monday at 7:00pm then 48 hours would be I change it on Wednesday at 7:00pm right? Thank you.