In between booking and travel I'd made no progress on getting accommodation or plans on what to do in my nearly 2 days there. However, whilst away on another trip I got a reprieve by way of schedule change - both flights being pushed back. So I called the airline back within 72 hours and asked to switch the return flight to a turn-around. After convincing the initially incredulous agent that 75 minutes at the destination was ample time for me, I got the flight switched fine.