How long will it take to transfer money internationally?

Description

I live in Canada and just recently sent money to a friend in US. On my history, the transfer was marked as completed, I also emailed and called PayPal to make sure that it was transfered to my friend and they both said it should be on the recipient’s view on the day I sent it. However, my friend have checked multiple times since then and still there hasn’t been no money in her account yet. I’m just wondering how long would it take to transfer money from Canada to US, or at least show the money on the US account? I sent it on Thursday morning but PayPal withdrawed my money on next Tuesdays.