In one place on the front page, it says delivery takes 18 minutes. In another place on the same page, it says 20 minutes. Not that 2 minutes makes a difference

In one place on the front page, it says delivery takes 18 minutes. In another place on the same page, it says 20 minutes. Not that 2 minutes makes a difference, but the numbers should be consistent. I like 18 minutes because it sounds precise.