24/7 Never Closed

Someone says "the stock market is open about 69% of the days in a year, so it's open most of the time". What's wrong with that?

• Nothing; days are the right unit for comparing markets
• A trading day is only a few hours long, so counting hours gives a much smaller share
• The market is actually open on weekends too

A blockchain is running normally on a Sunday. Which part of a crypto-to-bank trip is most likely to wait for a business day?

• Adding your transaction to a block
• Creating a new address
• The transfer from the exchange to your bank account