Banks are screwed up?

I made an electronic payment from my bank to my credit card.  The second that I hit "CONFIRM" the cash dissapears from my account and goes... where does it go?

The credit card company claims it takes 3-5 business days to get to them and be posted.  Why?  The transfer is electronic.  It does not take electrons 3-5 days to travel across the whole world let alone from Toronto to Toronto.  Even if there is a few intermediate stations for the money to pass through, why does it take 3-5 days?

The bigger question is who has the money and do they get interest on it when it is their hands?  I certainly don't get the interest.

Figure this:   If 50,000 (each) Canadians make a payment of $500 (each) per day (There are over 200 million cards in Canada so this means that only a small fraction are making payments each day in our example.), then $25,000,000 per day is floating in the ether.  If it floats for 4 days (happy medium), that means that someone, somewhere, has $100,000,000 in their account.  Let's say that the interest rate on that kind of money is 5 percent per year.  That means that the daily rate is about 0.02 or about $200,000 in compounding interest.  That calculates out to about $73,000,000 per year in interest gained by someone and lost by you and me.

No wonder the banks need bailouts.  They' re going broke with our money.