First-class passengers arrive at the same time as everyone else. You'll get off the plane first, but that will only save you a few minutes. The hours it can save you are in the recovery from the flight. David Liu, founder of TheKnot.com, described in
The New York Times how, in the early days of his business, a venture capitalist he met was shocked to learn he had saved money by booking a red-eye with three layovers. Instead of being impressed by his thrift, she told him the company couldn't afford a stressed-out CEO, and booked him on a first-class flight home.